#11801 SQL dialect init refactoring. Extra functions for DB2

plugins/org.jkiss.dbeaver.ext.clickhouse/src/org/jkiss/dbeaver/ext/clickhouse/model/ClickhouseSQLDialect.java

@@ -21,6 +21,7 @@ import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.DBPDataKind;
 import org.jkiss.dbeaver.model.DBPDataSource;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.struct.DBSTypedObject;
 
@@ -35,8 +36,8 @@ public class ClickhouseSQLDialect extends GenericSQLDialect {
         return false;
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         removeSQLKeyword("DEFAULT");
     }
 

plugins/org.jkiss.dbeaver.ext.datavirtuality/src/org/jkiss/dbeaver/ext/datavirtuality/model/DataVirtualitySQLDialect.java

@@ -21,6 +21,7 @@ import org.jkiss.code.Nullable;
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.DBPDataSourceContainer;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.sql.parser.rules.SQLDollarQuoteRule;
 import org.jkiss.dbeaver.model.text.parser.TPRule;
@@ -35,8 +36,8 @@ public class DataVirtualitySQLDialect extends GenericSQLDialect implements TPRul
         super("DataVirtuality", "datavirtuality");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         addSQLKeywords(
                 Arrays.asList(
                         "SIMILAR TO"

plugins/org.jkiss.dbeaver.ext.db2.i/src/org/jkiss/dbeaver/ext/db2/i/model/DB2ISQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.db2.i.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 
 public class DB2ISQLDialect extends GenericSQLDialect {
@@ -31,8 +32,8 @@ public class DB2ISQLDialect extends GenericSQLDialect {
         return false;
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         turnFunctionIntoKeyword("TRUNCATE");
     }
 

plugins/org.jkiss.dbeaver.ext.db2.zos/src/org/jkiss/dbeaver/ext/db2/zos/model/DB2ZOSSQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.db2.zos.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 
 public class DB2ZOSSQLDialect extends GenericSQLDialect {
@@ -31,8 +32,8 @@ public class DB2ZOSSQLDialect extends GenericSQLDialect {
         return false;
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         turnFunctionIntoKeyword("TRUNCATE");
     }
 

plugins/org.jkiss.dbeaver.ext.db2/OSGI-INF/l10n/bundle_ru.properties

@@ -574,6 +574,7 @@ meta.org.jkiss.dbeaver.ext.db2.model.DB2Variable.published.name=Published?
 meta.org.jkiss.dbeaver.ext.db2.model.DB2Variable.schema.name=Schema
 meta.org.jkiss.dbeaver.ext.db2.model.DB2Variable.valid.name=Valid?
 
+meta.org.jkiss.dbeaver.ext.db2.model.DB2View.tableId.name=Table ID
 meta.org.jkiss.dbeaver.ext.db2.model.DB2View.readOnly.name=Read Only?
 meta.org.jkiss.dbeaver.ext.db2.model.DB2View.viewCheck.name=Check Option
 

plugins/org.jkiss.dbeaver.ext.db2/src/org/jkiss/dbeaver/ext/db2/DB2Constants.java

@@ -123,10 +123,274 @@ public class DB2Constants {
         "RESULT", "RESULT_SET_LOCATOR", "RETURN", "RETURNS", "ROUTINE", "ROW", "RRN", "RUN", "SAVEPOINT", "SCRATCHPAD", "SECOND",
         "SECONDS", "SECQTY", "SECURITY", "SENSITIVE", "SIGNAL", "SIMPLE", "SOURCE", "SPECIFIC", "SQLID", "STANDARD", "START",
         "STARTING", "STATIC", "STAY", "STOGROUP", "STORES", "STYLE", "SUBPAGES", "SYNONYM", "SYSPROC", "SYSTEM", "TABLESPACE",
-        "TRIGGER", "TYPE", "UNDO", "UNTIL", "VALIDPROC", "VARIABLE", "VARIANT", "VCAT", "VOLATILE", "VOLUMES", "WHILE", "WLM",
-        "YEAR", "YEARS", };
+        "TRIGGER", "TYPE", "UNDO", "UNTIL", "VALIDPROC", "VARIABLE", "VARIANT", "VCAT", "VOLATILE", "VOLUMES", "WHILE", "WLM" };
 
     public static final DBDPseudoAttribute PSEUDO_ATTR_RID_BIT         = new DBDPseudoAttribute(DBDPseudoAttributeType.ROWID,
         "RID_BIT()", "RID_BIT($alias)", "RID_BIT", "Unique physical row identifier", false);
 
+    static final String[] ROUTINES = {
+        "ABS",
+        "ABSVAL",
+        "ACOS",
+        "ADD_DAYS",
+        "ADD_HOURS",
+        "ADD_MINUTES",
+        "ADD_MONTHS",
+        "ADD_SECONDS",
+        "ADD_YEARS",
+        "AGE",
+        "ARRAY_DELETE",
+        "ARRAY_FIRST",
+        "ARRAY_LAST",
+        "ARRAY_NEXT",
+        "ARRAY_PRIOR",
+        "ASCII",
+        "ASCII_STR",
+        "ASIN",
+        "ATAN",
+        "ATAN2",
+        "ATANH",
+        "BINARY",
+        "BITAND",
+        "BITANDNOT",
+        "BITOR",
+        "BITXOR",
+        "BITNOT",
+        "BSON_TO_JSON",
+        "BTRIM",
+        "CARDINALITY",
+        "CEILING",
+        "CEIL",
+        "CHARACTER_LENGTH",
+        "CHR",
+        "COALESCE",
+        "COLLATION_KEY",
+        "COLLATION_KEY_BIT",
+        "COMPARE_DECFLOAT",
+        "CONCAT",
+        "COS",
+        "COSH",
+        "COT",
+        "CURSOR_ROWCOUNT",
+        "DATAPARTITIONNUM",
+        "DATE_PART",
+        "DATE_TRUNC",
+        "DAY",
+        "DAYNAME",
+        "DAYOFMONTH",
+        "DAYOFWEEK",
+        "DAYOFWEEK_ISO",
+        "DAYOFYEAR",
+        "DAYS",
+        "DAYS_BETWEEN",
+        "DAYS_TO_END_OF_MONTH",
+        "DBPARTITIONNUM",
+        "DECFLOAT_FORMAT",
+        "DECODE",
+        "DECRYPT_BIN and DECRYPT_CHAR",
+        "DEGREES",
+        "DEREF",
+        "DIFFERENCE",
+        "DIGITS",
+        "EMPTY_BLOB",
+        "EMPTY_CLOB",
+        "EMPTY_DBCLOB",
+        "EMPTY_NCLOB",
+        "ENCRYPT",
+        "EVENT_MON_STATE",
+        "EXP",
+        "EXTRACT",
+        "FIRST_DAY",
+        "FLOAT",
+        "FLOAT4",
+        "FLOAT8",
+        "FLOOR",
+        "FROM_UTC_TIMESTAMP",
+        "GENERATE_UNIQUE",
+        "GETHINT",
+        "GRAPHIC",
+        "GREATEST",
+        "HASH",
+        "HASH4",
+        "HASH8",
+        "HASHEDVALUE",
+        "HEX",
+        "HEXTORAW",
+        "HOUR",
+        "HOURS_BETWEEN",
+        "IDENTITY_VAL_LOCAL",
+        "IFNULL",
+        "INITCAP",
+        "INSERT",
+        "INSTR",
+        "INSTR2",
+        "INSTR4",
+        "INSTRB",
+        "INTNAND",
+        "INTNOR",
+        "INTNXOR",
+        "INTNNOT",
+        "ISNULL",
+        "JSON_ARRAY",
+        "JSON_OBJECT",
+        "JSON_QUERY",
+        "JSON_TO_BSON",
+        "JSON_VALUE",
+        "JULIAN_DAY",
+        "LAST_DAY",
+        "LCASE",
+        "LEAST",
+        "LEFT",
+        "LENGTH",
+        "LENGTH2",
+        "LENGTH4",
+        "LENGTHB",
+        "LN",
+        "LOCATE",
+        "LOCATE_IN_STRING",
+        "LOG10",
+        "LOWER",
+        "LPAD",
+        "LTRIM",
+        "LTRIM",
+        "MAX",
+        "MAX_CARDINALITY",
+        "MICROSECOND",
+        "MIDNIGHT_SECONDS",
+        "MIN",
+        "MINUTE",
+        "MINUTES_BETWEEN",
+        "MOD",
+        "MONTH",
+        "MONTHNAME",
+        "MONTHS_BETWEEN",
+        "MULTIPLY_ALT",
+        "NEXT_DAY",
+        "NEXT_MONTH",
+        "NEXT_QUARTER",
+        "NEXT_WEEK",
+        "NEXT_YEAR",
+        "NORMALIZE_DECFLOAT",
+        "NOW",
+        "NULLIF",
+        "NVL",
+        "NVL2",
+        "OCTET_LENGTH",
+        "OVERLAY",
+        "PARAMETER",
+        "POSITION",
+        "POSSTR",
+        "POW",
+        "POWER",
+        "QUANTIZE",
+        "QUARTER",
+        "QUOTE_IDENT",
+        "QUOTE_LITERAL",
+        "RADIANS",
+        "RAISE_ERROR",
+        "RAND",
+        "RANDOM",
+        "RAWTOHEX",
+        "REC2XML",
+        "REGEXP_COUNT",
+        "REGEXP_EXTRACT",
+        "REGEXP_INSTR",
+        "REGEXP_LIKE",
+        "REGEXP_MATCH_COUNT",
+        "REGEXP_REPLACE",
+        "REGEXP_SUBSTR",
+        "REPEAT",
+        "REPLACE",
+        "RIGHT",
+        "ROUND",
+        "ROUND_TIMESTAMP",
+        "RPAD",
+        "RTRIM",
+        "SECLABEL",
+        "SECLABEL_BY_NAME",
+        "SECLABEL_TO_CHAR",
+        "SECOND",
+        "SECONDS_BETWEEN",
+        "SIGN",
+        "SIN",
+        "SINH",
+        "SOUNDEX",
+        "SPACE",
+        "SQRT",
+        "STRIP",
+        "STRLEFT",
+        "STRPOS",
+        "STRRIGHT",
+        "SUBSTR",
+        "SUBSTR2",
+        "SUBSTR4",
+        "SUBSTRB",
+        "SUBSTRING",
+        "TABLE_NAME",
+        "TABLE_SCHEMA",
+        "TAN",
+        "TANH",
+        "THIS_MONTH",
+        "THIS_QUARTER",
+        "THIS_WEEK",
+        "THIS_YEAR",
+        "TIMESTAMP_FORMAT",
+        "TIMESTAMP_ISO",
+        "TIMESTAMPDIFF",
+        "TIMEZONE",
+        "TO_CHAR",
+        "TO_CLOB",
+        "TO_DATE",
+        "TO_HEX",
+        "TO_MULTI_BYTE",
+        "TO_NCHAR",
+        "TO_NCLOB",
+        "TO_NUMBER",
+        "TO_SINGLE_BYTE",
+        "TO_TIMESTAMP",
+        "TO_UTC_TIMESTAMP",
+        "TOTALORDER",
+        "TRANSLATE",
+        "TRIM",
+        "TRIM_ARRAY",
+        "TRUNC_TIMESTAMP",
+        "TRUNC",
+        "TYPE_ID",
+        "TYPE_NAME",
+        "TYPE_SCHEMA",
+        "UCASE",
+        "UNICODE_STR",
+        "UPPER",
+        "VALUE",
+        "VARCHAR_BIT_FORMAT",
+        "VARCHAR_FORMAT",
+        "VARCHAR_FORMAT_BIT",
+        "VERIFY_GROUP_FOR_USER",
+        "VERIFY_ROLE_FOR_USER",
+        "VERIFY_TRUSTED_CONTEXT_ROLE_FOR_USER",
+        "WEEK",
+        "WEEK_ISO",
+        "WEEKS_BETWEEN",
+        "WIDTH_BUCKET",
+        "XMLATTRIBUTES",
+        "XMLCOMMENT",
+        "XMLCONCAT",
+        "XMLDOCUMENT",
+        "XMLELEMENT",
+        "XMLFOREST",
+        "XMLNAMESPACES",
+        "XMLPARSE",
+        "XMLPI",
+        "XMLQUERY",
+        "XMLROW",
+        "XMLSERIALIZE",
+        "XMLTEXT",
+        "XMLVALIDATE",
+        "XMLXSROBJECTID",
+        "XSLTRANSFORM",
+        "YEAR",
+        "YEARS_BETWEEN",
+        "YMD_BETWEEN",
+
+    };
 }

plugins/org.jkiss.dbeaver.ext.db2/src/org/jkiss/dbeaver/ext/db2/DB2SQLDialect.java

@@ -19,11 +19,21 @@ package org.jkiss.dbeaver.ext.db2;
 
 import org.jkiss.code.NotNull;
 import org.jkiss.code.Nullable;
+import org.jkiss.dbeaver.DBException;
+import org.jkiss.dbeaver.Log;
 import org.jkiss.dbeaver.model.data.DBDBinaryFormatter;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCResultSet;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCStatement;
 import org.jkiss.dbeaver.model.impl.data.formatters.BinaryFormatterHexString;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
+import org.jkiss.utils.CommonUtils;
+
+import java.sql.SQLException;
+import java.util.Arrays;
+import java.util.Set;
 
 /**
  * DB2 SQL dialect
@@ -33,20 +43,24 @@ import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
  */
 public class DB2SQLDialect extends JDBCSQLDialect {
 
+    private static final Log log = Log.getLog(DB2SQLDialect.class);
+
     public static final String[] EXEC_KEYWORDS = new String[]{"call"};
 
     private static final String[][] DB2_BEGIN_END_BLOCK = new String[][]{
     };
 
+    private static final boolean LOAD_ROUTINES_FROM_SYSCAT = false;
+
     public DB2SQLDialect() {
         super("DB2 LUW", "db2_luw");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
-        for (String kw : DB2Constants.ADVANCED_KEYWORDS) {
-            this.addSQLKeyword(kw);
-        }
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
+        addSQLKeywords(Arrays.asList(DB2Constants.ADVANCED_KEYWORDS));
+        addFunctions(Arrays.asList(DB2Constants.ROUTINES));
+
         turnFunctionIntoKeyword("TRUNCATE");
     }
 
@@ -69,6 +83,29 @@ public class DB2SQLDialect extends JDBCSQLDialect {
         return EXEC_KEYWORDS;
     }
 
+    @Override
+    protected void loadFunctions(JDBCSession session, JDBCDatabaseMetaData metaData, Set<String> allFunctions) throws DBException, SQLException {
+        if (LOAD_ROUTINES_FROM_SYSCAT) {
+            try (JDBCStatement stmt = session.createStatement()) {
+                try (JDBCResultSet dbResult = stmt.executeQuery(
+                    "SELECT DISTINCT ROUTINENAME FROM SYSCAT.ROUTINES")) {
+                    while (dbResult.next()) {
+                        String routineName = dbResult.getString(1);
+                        if (CommonUtils.isEmpty(routineName) || !Character.isLetter(routineName.charAt(0))) {
+                            continue;
+                        }
+                        allFunctions.add(routineName);
+                    }
+                }
+            } catch (Throwable e) {
+                log.debug("Error loading DB2 functions", e);
+            }
+        }
+        if (allFunctions.isEmpty()) {
+            super.loadFunctions(session, metaData, allFunctions);
+        }
+    }
+
     @Nullable
     @Override
     public String getDualTableName() {

plugins/org.jkiss.dbeaver.ext.db2/src/org/jkiss/dbeaver/ext/db2/model/DB2TableColumn.java

@@ -20,6 +20,7 @@ package org.jkiss.dbeaver.ext.db2.model;
 import org.jkiss.code.NotNull;
 import org.jkiss.code.Nullable;
 import org.jkiss.dbeaver.DBException;
+import org.jkiss.dbeaver.Log;
 import org.jkiss.dbeaver.ext.db2.DB2Constants;
 import org.jkiss.dbeaver.ext.db2.editors.DB2ColumnDataTypeListProvider;
 import org.jkiss.dbeaver.ext.db2.model.dict.DB2ColumnHiddenState;
@@ -41,6 +42,7 @@ import org.jkiss.dbeaver.model.struct.rdb.DBSTableColumn;
 import org.jkiss.utils.CommonUtils;
 
 import java.sql.ResultSet;
+import java.sql.Types;
 
 /**
  * DB2 Table Column
@@ -50,6 +52,8 @@ import java.sql.ResultSet;
 public class DB2TableColumn extends JDBCTableColumn<DB2TableBase>
     implements DBSTableColumn, DBSTypedObjectEx, DBPHiddenObject, DBSTypedObjectExt4<DB2DataType> {
 
+    private static final Log log = Log.getLog(DB2TableColumn.class);
+
     private DB2DataType dataType;
     private DB2Schema dataTypeSchema;
     private String remarks;
@@ -159,8 +163,14 @@ public class DB2TableColumn extends JDBCTableColumn<DB2TableBase>
         } else {
             this.dataTypeSchema = dataType.getSchema();
         }
-        setTypeName(dataType.getFullyQualifiedName(DBPEvaluationContext.DML));
-        setValueType(dataType.getTypeID());
+        if (this.dataType == null) {
+            log.debug("Data type '" + typeName + "' wasn't resolved");
+            setTypeName(typeName);
+            setValueType(Types.OTHER);
+        } else {
+            setTypeName(dataType.getFullyQualifiedName(DBPEvaluationContext.DML));
+            setValueType(dataType.getTypeID());
+        }
     }
 
     public DB2TableColumn(DB2TableBase tableBase)

plugins/org.jkiss.dbeaver.ext.exasol/src/org/jkiss/dbeaver/ext/exasol/ExasolSQLDialect.java

@@ -21,14 +21,12 @@ import org.jkiss.code.NotNull;
 import org.jkiss.dbeaver.Log;
 import org.jkiss.dbeaver.ext.exasol.model.ExasolDataSource;
 import org.jkiss.dbeaver.model.DBPKeywordType;
-import org.jkiss.dbeaver.model.DBUtils;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCResultSet;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCStatement;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
-import org.jkiss.dbeaver.model.runtime.VoidProgressMonitor;
 import org.jkiss.dbeaver.model.struct.DBSAttributeBase;
 
 import java.sql.SQLException;
@@ -52,21 +50,15 @@ public class ExasolSQLDialect extends JDBCSQLDialect {
         super.addFunctions(Arrays.asList(functions));
     }
     
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         
         Collections.addAll(tableQueryWords, "DESC");
         
         try {
-          
-        	JDBCSession session = DBUtils.openMetaSession(new VoidProgressMonitor(), dataSource, "" );
-        	try (JDBCStatement stmt = session.createStatement())
-        	{
-        		try (JDBCResultSet dbResult = stmt.executeQuery("/*snapshot execution*/ SELECT \"VALUE\" FROM \"$ODBCJDBC\".DB_METADATA WHERE name = 'aggregateFunctions'")) 
-        		{
-        			
-        			if (dbResult.next())
-        			{
+			try (JDBCStatement stmt = session.createStatement()) {
+        		try (JDBCResultSet dbResult = stmt.executeQuery("/*snapshot execution*/ SELECT \"VALUE\" FROM \"$ODBCJDBC\".DB_METADATA WHERE name = 'aggregateFunctions'")) {
+        			if (dbResult.next()) {
         				String keyWord = dbResult.getString(1);
         				
         				String[] aggregateFunctions = keyWord.split(",");
@@ -74,10 +66,8 @@ public class ExasolSQLDialect extends JDBCSQLDialect {
         				
         			}
         		}
-        		try (JDBCResultSet dbResult = stmt.executeQuery("/*snapshot execution*/ SELECT keyword FROM sys.EXA_SQL_KEYWORDS esk WHERE RESERVED")) 
-        		{
-        			while(dbResult.next())
-        			{
+        		try (JDBCResultSet dbResult = stmt.executeQuery("/*snapshot execution*/ SELECT keyword FROM sys.EXA_SQL_KEYWORDS esk WHERE RESERVED")) {
+        			while(dbResult.next()) {
         				String keyWord = dbResult.getString("KEYWORD");
         				super.addSQLKeyword(keyWord);
         			}

plugins/org.jkiss.dbeaver.ext.firebird/src/org/jkiss/dbeaver/ext/firebird/model/FireBirdSQLDialect.java

@@ -20,6 +20,7 @@ import org.jkiss.code.NotNull;
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.DBPEvaluationContext;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.struct.rdb.DBSProcedure;
 
@@ -59,8 +60,8 @@ public class FireBirdSQLDialect extends GenericSQLDialect {
         return FB_BEGIN_END_BLOCK;
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         turnFunctionIntoKeyword("TRUNCATE");
     }
 

plugins/org.jkiss.dbeaver.ext.generic/src/org/jkiss/dbeaver/ext/generic/model/GenericSQLDialect.java

@@ -23,6 +23,7 @@ import org.jkiss.dbeaver.ext.generic.GenericConstants;
 import org.jkiss.dbeaver.model.DBPDataSource;
 import org.jkiss.dbeaver.model.connection.DBPDriver;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
 import org.jkiss.utils.CommonUtils;
@@ -57,8 +58,8 @@ public class GenericSQLDialect extends JDBCSQLDialect {
         super(name, id);
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         DBPDriver driver = dataSource.getContainer().getDriver();
         this.scriptDelimiter = CommonUtils.toString(driver.getDriverParameter(GenericConstants.PARAM_SCRIPT_DELIMITER));
         String escapeStr = CommonUtils.toString(driver.getDriverParameter(GenericConstants.PARAM_STRING_ESCAPE_CHAR));

plugins/org.jkiss.dbeaver.ext.h2/src/org/jkiss/dbeaver/ext/h2/model/H2SQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.h2.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 
 
@@ -30,8 +31,8 @@ public class H2SQLDialect extends GenericSQLDialect {
         super("H2", "h2");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
     }
 
     @Override

plugins/org.jkiss.dbeaver.ext.hana/src/org/jkiss/dbeaver/ext/hana/model/HANASQLDialect.java

@@ -23,6 +23,7 @@ import org.jkiss.dbeaver.model.DBPDataKind;
 import org.jkiss.dbeaver.model.DBPDataSource;
 import org.jkiss.dbeaver.model.exec.DBCException;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.runtime.VoidProgressMonitor;
 import org.jkiss.dbeaver.model.sql.SQLConstants;
@@ -50,8 +51,8 @@ public class HANASQLDialect extends GenericSQLDialect {
         return HANA_BEGIN_END_BLOCK;
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         // TODO: check if obsolete
         addSQLKeywords(
                 Arrays.asList(

plugins/org.jkiss.dbeaver.ext.hive/src/org/jkiss/dbeaver/ext/hive/model/HiveSQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.hive.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 
 import java.util.Arrays;
@@ -105,8 +106,8 @@ public class HiveSQLDialect extends GenericSQLDialect {
             "QUOTE"
     };
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         for (String keyword : NON_RESERVED_KEYWORDS) {
             removeSQLKeyword(keyword);
         }

plugins/org.jkiss.dbeaver.ext.hsqldb/src/org/jkiss/dbeaver/ext/hsqldb/model/HSQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.hsqldb.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 
 import java.util.Arrays;
@@ -28,8 +29,8 @@ public class HSQLDialect extends GenericSQLDialect {
         super("HSQLDB", "hsqldb");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         addDataTypes(
             Arrays.asList(
                 "NCHAR",

plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/model/SQLServerDialect.java

@@ -22,6 +22,7 @@ import org.jkiss.dbeaver.ext.mssql.SQLServerUtils;
 import org.jkiss.dbeaver.model.DBPDataKind;
 import org.jkiss.dbeaver.model.DBPDataSource;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
 import org.jkiss.dbeaver.model.sql.SQLConstants;
@@ -95,8 +96,8 @@ public class SQLServerDialect extends JDBCSQLDialect {
         super("SQLServer", "sqlserver");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         super.addSQLKeywords(Arrays.asList(SQLSERVER_EXTRA_KEYWORDS));
         this.dataSource = dataSource;
         this.isSqlServer = SQLServerUtils.isDriverSqlServer(dataSource.getContainer().getDriver());

plugins/org.jkiss.dbeaver.ext.mysql/src/org/jkiss/dbeaver/ext/mysql/model/MySQLDialect.java

@@ -20,6 +20,7 @@ import org.jkiss.code.NotNull;
 import org.jkiss.code.Nullable;
 import org.jkiss.dbeaver.ext.mysql.MySQLConstants;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
 import org.jkiss.dbeaver.model.impl.sql.BasicSQLDialect;
@@ -113,8 +114,8 @@ class MySQLDialect extends JDBCSQLDialect {
         super("MySQL", "mysql");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         this.lowerCaseTableNames = ((MySQLDataSource)dataSource).getLowerCaseTableNames();
         this.setSupportsUnquotedMixedCase(lowerCaseTableNames != 2);
 

plugins/org.jkiss.dbeaver.ext.oracle/src/org/jkiss/dbeaver/ext/oracle/model/OracleSQLDialect.java

@@ -25,6 +25,7 @@ import org.jkiss.dbeaver.model.DBPKeywordType;
 import org.jkiss.dbeaver.model.DBUtils;
 import org.jkiss.dbeaver.model.data.DBDBinaryFormatter;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
 import org.jkiss.dbeaver.model.impl.sql.BasicSQLDialect;
@@ -113,8 +114,8 @@ public class OracleSQLDialect extends JDBCSQLDialect {
         super("Oracle", "oracle");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         crlfBroken = !dataSource.isServerVersionAtLeast(11, 0);
         preferenceStore = dataSource.getContainer().getPreferenceStore();
 

plugins/org.jkiss.dbeaver.ext.phoenix/src/org/jkiss/dbeaver/ext/phoenix/model/PhoenixSQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.phoenix.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.sql.SQLDialect;
 
@@ -27,8 +28,8 @@ public class PhoenixSQLDialect extends GenericSQLDialect {
         super("Phoenix", "apache_phoenix");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         schemaUsage = SQLDialect.USAGE_ALL;
         removeSQLKeyword("SYSTEM");
     }

plugins/org.jkiss.dbeaver.ext.postgresql/src/org/jkiss/dbeaver/ext/postgresql/model/PostgreDialect.java

@@ -29,6 +29,7 @@ import org.jkiss.dbeaver.model.DBPDataSourceContainer;
 import org.jkiss.dbeaver.model.DBPKeywordType;
 import org.jkiss.dbeaver.model.data.DBDBinaryFormatter;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCSQLDialect;
 import org.jkiss.dbeaver.model.impl.sql.BasicSQLDialect;
@@ -673,8 +674,8 @@ public class PostgreDialect extends JDBCSQLDialect implements TPRuleProvider {
         super.addFunctions(Arrays.asList(functions));
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
 
         addExtraKeywords(
             "SHOW",

plugins/org.jkiss.dbeaver.ext.snowflake.core/src/org/jkiss/dbeaver/ext/snowflake/model/SnowflakeSQLDialect.java

@@ -21,6 +21,7 @@ import org.jkiss.code.Nullable;
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.DBPDataSourceContainer;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.sql.parser.rules.SQLDollarQuoteRule;
 import org.jkiss.dbeaver.model.text.parser.TPRule;
@@ -35,8 +36,8 @@ public class SnowflakeSQLDialect extends GenericSQLDialect implements TPRuleProv
         super("Snowflake", "snowflake");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         addSQLKeywords(
                 Arrays.asList(
                         "QUALIFY",

plugins/org.jkiss.dbeaver.ext.sqlite/src/org/jkiss/dbeaver/ext/sqlite/model/SQLiteSQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.sqlite.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.sql.BasicSQLDialect;
 
@@ -27,8 +28,8 @@ public class SQLiteSQLDialect extends GenericSQLDialect {
         super("SQLite", "sqlite");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
     }
 
     @Override

plugins/org.jkiss.dbeaver.ext.teradata/src/org/jkiss/dbeaver/ext/teradata/model/TeradataSQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.teradata.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 
 import java.util.Arrays;
@@ -28,8 +29,8 @@ public class TeradataSQLDialect extends GenericSQLDialect {
         super("Teradata", "teradata");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
         addSQLKeywords(
             Arrays.asList(
                 "QUALIFY"

plugins/org.jkiss.dbeaver.ext.vertica/src/org/jkiss/dbeaver/ext/vertica/model/VerticaSQLDialect.java

@@ -18,6 +18,7 @@ package org.jkiss.dbeaver.ext.vertica.model;
 
 import org.jkiss.dbeaver.ext.generic.model.GenericSQLDialect;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.jdbc.JDBCDataSource;
 import org.jkiss.dbeaver.model.impl.sql.BasicSQLDialect;
 
@@ -27,8 +28,8 @@ public class VerticaSQLDialect extends GenericSQLDialect {
         super("Vertica", "vertica");
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
-        super.initDriverSettings(dataSource, metaData);
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+        super.initDriverSettings(session, dataSource, metaData);
     }
 
     @Override

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/impl/jdbc/JDBCDataSource.java

@@ -414,7 +414,7 @@ public abstract class JDBCDataSource
 
             if (this.sqlDialect instanceof JDBCSQLDialect) {
                 try {
-                    ((JDBCSQLDialect) this.sqlDialect).initDriverSettings(this, metaData);
+                    ((JDBCSQLDialect) this.sqlDialect).initDriverSettings(session, this, metaData);
                 } catch (Throwable e) {
                     log.error("Error initializing dialect driver settings", e);
                 }

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/impl/jdbc/JDBCSQLDialect.java

@@ -18,11 +18,13 @@ package org.jkiss.dbeaver.model.impl.jdbc;
 
 import org.jkiss.code.NotNull;
 import org.jkiss.code.Nullable;
+import org.jkiss.dbeaver.DBException;
 import org.jkiss.dbeaver.Log;
 import org.jkiss.dbeaver.model.DBPDataSource;
 import org.jkiss.dbeaver.model.DBPIdentifierCase;
 import org.jkiss.dbeaver.model.DBPKeywordType;
 import org.jkiss.dbeaver.model.exec.jdbc.JDBCDatabaseMetaData;
+import org.jkiss.dbeaver.model.exec.jdbc.JDBCSession;
 import org.jkiss.dbeaver.model.impl.sql.BasicSQLDialect;
 import org.jkiss.dbeaver.model.sql.SQLConstants;
 import org.jkiss.dbeaver.model.sql.SQLDialect;
@@ -66,7 +68,7 @@ public class JDBCSQLDialect extends BasicSQLDialect {
         this.id = id;
     }
 
-    public void initDriverSettings(JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
+    public void initDriverSettings(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
         String singleQuoteStr;
         try {
             singleQuoteStr = metaData.getIdentifierQuoteString();
@@ -203,7 +205,7 @@ public class JDBCSQLDialect extends BasicSQLDialect {
             this.isCatalogAtStart = true;
         }
 
-        loadDriverKeywords(metaData);
+        loadDriverKeywords(session, dataSource, metaData);
     }
 
     @NotNull
@@ -347,7 +349,7 @@ public class JDBCSQLDialect extends BasicSQLDialect {
         addKeywords(types, DBPKeywordType.TYPE);
     }
 
-    private void loadDriverKeywords(JDBCDatabaseMetaData metaData) {
+    private void loadDriverKeywords(JDBCSession session, JDBCDataSource dataSource, JDBCDatabaseMetaData metaData) {
         try {
             // Keywords
             Collection<String> sqlKeywords = makeStringList(metaData.getSQLKeywords());
@@ -362,18 +364,7 @@ public class JDBCSQLDialect extends BasicSQLDialect {
         try {
             // Functions
             Set<String> allFunctions = new HashSet<>();
-            for (String func : makeStringList(metaData.getNumericFunctions())) {
-                allFunctions.add(func.toUpperCase());
-            }
-            for (String func : makeStringList(metaData.getStringFunctions())) {
-                allFunctions.add(func.toUpperCase());
-            }
-            for (String func : makeStringList(metaData.getSystemFunctions())) {
-                allFunctions.add(func.toUpperCase());
-            }
-            for (String func : makeStringList(metaData.getTimeDateFunctions())) {
-                allFunctions.add(func.toUpperCase());
-            }
+            loadFunctions(session, metaData, allFunctions);
             // Remove functions which clashes with keywords
             for (Iterator<String> fIter = allFunctions.iterator(); fIter.hasNext(); ) {
                 if (getKeywordType(fIter.next()) == DBPKeywordType.KEYWORD) {
@@ -386,6 +377,21 @@ public class JDBCSQLDialect extends BasicSQLDialect {
         }
     }
 
+    protected void loadFunctions(JDBCSession session, JDBCDatabaseMetaData metaData, Set<String> allFunctions) throws DBException, SQLException {
+        for (String func : makeStringList(metaData.getNumericFunctions())) {
+            allFunctions.add(func.toUpperCase());
+        }
+        for (String func : makeStringList(metaData.getStringFunctions())) {
+            allFunctions.add(func.toUpperCase());
+        }
+        for (String func : makeStringList(metaData.getSystemFunctions())) {
+            allFunctions.add(func.toUpperCase());
+        }
+        for (String func : makeStringList(metaData.getTimeDateFunctions())) {
+            allFunctions.add(func.toUpperCase());
+        }
+    }
+
     private static List<String> makeStringList(String source) {
         List<String> result = new ArrayList<>();
         if (source != null && source.length() > 0) {