#2969 String escape configuration (Impala)

plugins/org.jkiss.dbeaver.ext.generic/plugin.xml

@@ -118,6 +118,7 @@
                     <property id="script-delimiter-redefiner" label="Script delimiter redefiner" description="SQL clause which redefines script delimiter value" type="string" required="false" defaultValue=";"/>
                     <property id="script-delimiter-after-query" label="Use script delimiter after query" description="Keep SQL script delimiter after each SQL query" type="boolean" required="false" defaultValue="false"/>
                     <property id="script-delimiter-after-block" label="Use script delimiter after SQL block" description="Keep SQL script delimiter after SQL script blocks (BEGIN/END)" type="boolean" required="false" defaultValue="false"/>
+                    <property id="string-escape-char" label="String escape character" description="Character used to escape special symbols in strings" type="string" required="false" defaultValue=""/>
                     <property id="meta-model" label="Meta model type" description="Type of metadata reading model - standard or indexed" type="string" required="false" defaultValue="" validValues="standard,indexed"/>
                     <property id="all-objects-pattern" label="All Objects Pattern" description="SQL pattern for all metadata objects" type="string" required="false" defaultValue="null" validValues="null,%"/>
                     <property id="omit-catalog" label="Omit catalog(s)" description="Do not read and use catalog (aka database) information" type="boolean" required="false" defaultValue="false"/>
@@ -871,6 +872,7 @@
 
                     <parameter name="query-get-active-db" value="select current_database()"/>
                     <parameter name="query-set-active-db" value="use [?]"/>
+                    <parameter name="string-escape-char" value="\"/>
                 </driver>
 
                 <!-- AWS -->

plugins/org.jkiss.dbeaver.ext.generic/src/org/jkiss/dbeaver/ext/generic/GenericConstants.java

@@ -43,6 +43,7 @@ public class GenericConstants {
     public static final String PARAM_SCRIPT_DELIMITER_REDEFINER = "script-delimiter-redefiner";
     public static final String PARAM_SQL_DELIMITER_AFTER_QUERY = "script-delimiter-after-query";
     public static final String PARAM_SQL_DELIMITER_AFTER_BLOCK = "script-delimiter-after-block";
+    public static final String PARAM_STRING_ESCAPE_CHAR = "string-escape-char";
     public static final String PARAM_EMBEDDED = "embedded";
     public static final String PARAM_DDL_DROP_COLUMN_SHORT = "ddl-drop-column-short";
     public static final String PARAM_LEGACY_DIALECT = "legacy-sql-dialect";

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

@@ -34,6 +34,7 @@ public class GenericSQLDialect extends JDBCSQLDialect {
     private static String[] EXEC_KEYWORDS =  { "EXEC", "CALL" };
 
     private String scriptDelimiter;
+    private char stringEscapeCharacter = '\0';
     private String scriptDelimiterRedefiner;
     private boolean legacySQLDialect;
     private boolean suportsUpsert;
@@ -55,6 +56,10 @@ public class GenericSQLDialect extends JDBCSQLDialect {
         super.initDriverSettings(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));
+        if (!CommonUtils.isEmpty(escapeStr)) {
+            this.stringEscapeCharacter = escapeStr.charAt(0);
+        }
         this.scriptDelimiterRedefiner = CommonUtils.toString(driver.getDriverParameter(GenericConstants.PARAM_SCRIPT_DELIMITER_REDEFINER));
         this.hasDelimiterAfterQuery = CommonUtils.toBoolean(driver.getDriverParameter(GenericConstants.PARAM_SQL_DELIMITER_AFTER_QUERY));
         this.hasDelimiterAfterBlock = CommonUtils.toBoolean(driver.getDriverParameter(GenericConstants.PARAM_SQL_DELIMITER_AFTER_BLOCK));
@@ -76,11 +81,15 @@ public class GenericSQLDialect extends JDBCSQLDialect {
 
     @NotNull
     @Override
-    public String getScriptDelimiter()
-    {
+    public String getScriptDelimiter() {
         return CommonUtils.isEmpty(scriptDelimiter) ? super.getScriptDelimiter() : scriptDelimiter;
     }
 
+    @Override
+    public char getStringEscapeCharacter() {
+        return stringEscapeCharacter;
+    }
+
     @Override
     public String getScriptDelimiterRedefiner() {
         return scriptDelimiterRedefiner;