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Code Issues Releases Wiki Activity

improved sql parser.

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This commit is contained in:
wenshao
2017-10-31 15:38:39 +08:00
parent 72cb76dc49
commit 6220b9a65b
11 changed files with 279 additions and 5 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
+14
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@@ -27,6 +27,7 @@ import com.alibaba.druid.sql.ast.*;
import com.alibaba.druid.sql.ast.expr.*;
import com.alibaba.druid.sql.ast.statement.*;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleArgumentExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGTypeCastExpr;
import com.alibaba.druid.util.FnvHash;
import com.alibaba.druid.util.JdbcConstants;
@@ -1012,6 +1013,19 @@ public class SQLExprParser extends SQLParser {
} else if (hash_lower == FnvHash.Constants.POSITION
&& JdbcConstants.MYSQL.equals(dbType)) {
return parsePosition();
} else if (hash_lower == FnvHash.Constants.INT4 && JdbcConstants.POSTGRESQL.equals(dbType)) {
PGTypeCastExpr castExpr = new PGTypeCastExpr();
castExpr.setExpr(this.expr());
castExpr.setDataType(new SQLDataTypeImpl(methodName));
accept(Token.RPAREN);
return castExpr;
} else if (hash_lower == FnvHash.Constants.VARBIT && JdbcConstants.POSTGRESQL.equals(dbType)) {
PGTypeCastExpr castExpr = new PGTypeCastExpr();
SQLExpr len = this.primary();
castExpr.setDataType(new SQLDataTypeImpl(methodName, len));
accept(Token.RPAREN);
castExpr.setExpr(this.expr());
return castExpr;
}
aggMethodName = getAggreateFunction(hash_lower);
} else if (expr instanceof SQLPropertyExpr) {