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feat: add hint option

This commit is contained in:
dapan1121 2023-08-14 10:47:56 +08:00
parent b4b9a12d61
commit ae0426717a
1 changed files with 10 additions and 5 deletions
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15
source/libs/parser/inc/sql.y
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@ -1009,7 +1009,7 @@ join_type(A) ::= INNER.
/************************************************ query_specification *************************************************/ /************************************************ query_specification *************************************************/
query_specification(A) ::= query_specification(A) ::=
SELECT hint_opt(M) set_quantifier_opt(B) select_list(C) from_clause_opt(D) SELECT hint_opt_list(M) set_quantifier_opt(B) select_list(C) from_clause_opt(D)
where_clause_opt(E) partition_by_clause_opt(F) range_opt(J) every_opt(K) where_clause_opt(E) partition_by_clause_opt(F) range_opt(J) every_opt(K)
fill_opt(L) twindow_clause_opt(G) group_by_clause_opt(H) having_clause_opt(I). { fill_opt(L) twindow_clause_opt(G) group_by_clause_opt(H) having_clause_opt(I). {
A = createSelectStmt(pCxt, B, C, D, M); A = createSelectStmt(pCxt, B, C, D, M);
@ -1023,10 +1023,15 @@ query_specification(A) ::=
A = addFillClause(pCxt, A, L); A = addFillClause(pCxt, A, L);
} }
%type hint_opt { SQueryHint }
%destructor hint_opt { } hint_opt(A) ::= . { A = false; }
hint_opt(A) ::= . { A.withHint = false; } hint_opt(A) ::= NO_BATCH_SCAN NK_LP NK_RP. { A = createHintNode(pCxt, HINT_NO_BATCH_SCAN, NULL); }
hint_opt(A) ::= NO_BATCH_SCAN NK_LP NK_RP. { A.withHint = true; A.batchScan = false; } hint_opt(A) ::= BATCH_SCAN NK_LP NK_RP. { A = createHintNode(pCxt, HINT_BATCH_SCAN, NULL); }
%type hint_opt_list { SNodeList* }
%destructor hint_opt_list { nodesDestroyList($$); }
hint_opt_list(A) ::= hint_opt(B). { A = createNodeList(pCxt, B); }
hint_opt_list(A) ::= hint_opt_list(B) hint_opt(C). { A = addNodeToList(pCxt, B, C); }
%type set_quantifier_opt { bool } %type set_quantifier_opt { bool }
%destructor set_quantifier_opt { } %destructor set_quantifier_opt { }