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Code Issues Releases Wiki Activity

improved sql parser support create table partition syntax

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高铁
2016-02-26 21:53:00 +08:00
parent 4150256309
commit c9c6117897
45 changed files with 2015 additions and 1353 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLCreateTableParser.java
+45 -1
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@@ -16,6 +16,9 @@
package com.alibaba.druid.sql.parser;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.SQLPartition;
import com.alibaba.druid.sql.ast.SQLPartitionValue;
import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
import com.alibaba.druid.sql.ast.statement.SQLColumnDefinition;
import com.alibaba.druid.sql.ast.statement.SQLConstraint;
import com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement;
@@ -90,7 +93,7 @@ public class SQLCreateTableParser extends SQLDDLParser {
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
if (lexer.token() == Token.RPAREN) { // compatible for sql server
break;
}
@@ -126,4 +129,45 @@ public class SQLCreateTableParser extends SQLDDLParser {
protected SQLCreateTableStatement newCreateStatement() {
return new SQLCreateTableStatement(getDbType());
}
protected SQLPartitionValue parsePartitionValues() {
if (lexer.token() != Token.VALUES) {
return null;
}
lexer.nextToken();
SQLPartitionValue values = null;
if (lexer.token() == Token.IN) {
lexer.nextToken();
values = new SQLPartitionValue(SQLPartitionValue.Operator.In);
accept(Token.LPAREN);
this.exprParser.exprList(values.getItems(), values);
accept(Token.RPAREN);
} else if (identifierEquals("LESS")) {
lexer.nextToken();
acceptIdentifier("THAN");
values = new SQLPartitionValue(SQLPartitionValue.Operator.LessThan);
if (identifierEquals("MAXVALUE")) {
SQLIdentifierExpr maxValue = new SQLIdentifierExpr(lexer.stringVal());
lexer.nextToken();
maxValue.setParent(values);
values.getItems().add(maxValue);
} else {
accept(Token.LPAREN);
this.exprParser.exprList(values.getItems(), values);
accept(Token.RPAREN);
}
} else if (lexer.token() == Token.LPAREN) {
values = new SQLPartitionValue(SQLPartitionValue.Operator.List);
lexer.nextToken();
this.exprParser.exprList(values.getItems(), values);
accept(Token.RPAREN);
}
return values;
}
}