enh: tsma support first/last/count functions

include/common/ttokendef.h

@@ -182,65 +182,65 @@
 #define TK_INDEX                164
 #define TK_FUNCTION             165
 #define TK_INTERVAL             166
-#define TK_TOPIC                167
-#define TK_WITH                 168
-#define TK_META                 169
-#define TK_CONSUMER             170
-#define TK_GROUP                171
-#define TK_DESC                 172
-#define TK_DESCRIBE             173
-#define TK_RESET                174
-#define TK_QUERY                175
-#define TK_CACHE                176
-#define TK_EXPLAIN              177
-#define TK_ANALYZE              178
-#define TK_VERBOSE              179
-#define TK_NK_BOOL              180
-#define TK_RATIO                181
-#define TK_NK_FLOAT             182
-#define TK_OUTPUTTYPE           183
-#define TK_AGGREGATE            184
-#define TK_BUFSIZE              185
-#define TK_STREAM               186
-#define TK_INTO                 187
-#define TK_TRIGGER              188
-#define TK_AT_ONCE              189
-#define TK_WINDOW_CLOSE         190
-#define TK_IGNORE               191
-#define TK_EXPIRED              192
-#define TK_FILL_HISTORY         193
-#define TK_SUBTABLE             194
-#define TK_KILL                 195
-#define TK_CONNECTION           196
-#define TK_TRANSACTION          197
-#define TK_BALANCE              198
-#define TK_VGROUP               199
-#define TK_MERGE                200
-#define TK_REDISTRIBUTE         201
-#define TK_SPLIT                202
-#define TK_DELETE               203
-#define TK_INSERT               204
-#define TK_NULL                 205
-#define TK_NK_QUESTION          206
-#define TK_NK_ARROW             207
-#define TK_ROWTS                208
-#define TK_QSTART               209
-#define TK_QEND                 210
-#define TK_QDURATION            211
-#define TK_WSTART               212
-#define TK_WEND                 213
-#define TK_WDURATION            214
-#define TK_IROWTS               215
-#define TK_CAST                 216
-#define TK_NOW                  217
-#define TK_TODAY                218
-#define TK_TIMEZONE             219
-#define TK_CLIENT_VERSION       220
-#define TK_SERVER_VERSION       221
-#define TK_SERVER_STATUS        222
-#define TK_CURRENT_USER         223
-#define TK_COUNT                224
-#define TK_LAST_ROW             225
+#define TK_COUNT                167
+#define TK_LAST_ROW             168
+#define TK_TOPIC                169
+#define TK_WITH                 170
+#define TK_META                 171
+#define TK_CONSUMER             172
+#define TK_GROUP                173
+#define TK_DESC                 174
+#define TK_DESCRIBE             175
+#define TK_RESET                176
+#define TK_QUERY                177
+#define TK_CACHE                178
+#define TK_EXPLAIN              179
+#define TK_ANALYZE              180
+#define TK_VERBOSE              181
+#define TK_NK_BOOL              182
+#define TK_RATIO                183
+#define TK_NK_FLOAT             184
+#define TK_OUTPUTTYPE           185
+#define TK_AGGREGATE            186
+#define TK_BUFSIZE              187
+#define TK_STREAM               188
+#define TK_INTO                 189
+#define TK_TRIGGER              190
+#define TK_AT_ONCE              191
+#define TK_WINDOW_CLOSE         192
+#define TK_IGNORE               193
+#define TK_EXPIRED              194
+#define TK_FILL_HISTORY         195
+#define TK_SUBTABLE             196
+#define TK_KILL                 197
+#define TK_CONNECTION           198
+#define TK_TRANSACTION          199
+#define TK_BALANCE              200
+#define TK_VGROUP               201
+#define TK_MERGE                202
+#define TK_REDISTRIBUTE         203
+#define TK_SPLIT                204
+#define TK_DELETE               205
+#define TK_INSERT               206
+#define TK_NULL                 207
+#define TK_NK_QUESTION          208
+#define TK_NK_ARROW             209
+#define TK_ROWTS                210
+#define TK_QSTART               211
+#define TK_QEND                 212
+#define TK_QDURATION            213
+#define TK_WSTART               214
+#define TK_WEND                 215
+#define TK_WDURATION            216
+#define TK_IROWTS               217
+#define TK_CAST                 218
+#define TK_NOW                  219
+#define TK_TODAY                220
+#define TK_TIMEZONE             221
+#define TK_CLIENT_VERSION       222
+#define TK_SERVER_VERSION       223
+#define TK_SERVER_STATUS        224
+#define TK_CURRENT_USER         225
 #define TK_CASE                 226
 #define TK_END                  227
 #define TK_WHEN                 228

source/libs/parser/inc/sql.y

@@ -473,7 +473,15 @@ index_options(A) ::= FUNCTION NK_LP func_list(B) NK_RP INTERVAL
 func_list(A) ::= func(B).                                                         { A = createNodeList(pCxt, B); }
 func_list(A) ::= func_list(B) NK_COMMA func(C).                                   { A = addNodeToList(pCxt, B, C); }
 
-func(A) ::= function_name(B) NK_LP expression_list(C) NK_RP.                      { A = createFunctionNode(pCxt, &B, C); }
+func(A) ::= sma_func_name(B) NK_LP expression_list(C) NK_RP.                      { A = createFunctionNode(pCxt, &B, C); }
+
+%type sma_func_name                                                               { SToken }
+%destructor sma_func_name                                                         { }
+sma_func_name(A) ::= function_name(B).                                            { A = B; }
+sma_func_name(A) ::= COUNT(B).                                                    { A = B; }
+sma_func_name(A) ::= FIRST(B).                                                    { A = B; }
+sma_func_name(A) ::= LAST(B).                                                     { A = B; }
+sma_func_name(A) ::= LAST_ROW(B).                                                 { A = B; }
 
 sma_stream_opt(A) ::= .                                                           { A = createStreamOptions(pCxt); }
 sma_stream_opt(A) ::= sma_stream_opt(B) WATERMARK duration_literal(C).            { ((SStreamOptions*)B)->pWatermark = releaseRawExprNode(pCxt, C); A = B; }