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oracle sql parser support keep

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高铁
2016-03-11 22:08:13 +08:00
parent b66c366f93
commit 9dc9c808f6
9 changed files with 217 additions and 11 deletions
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src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleExprParser.java
+24
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@@ -20,6 +20,8 @@ import java.math.BigInteger;
import com.alibaba.druid.sql.ast.SQLDataType;
import com.alibaba.druid.sql.ast.SQLDataTypeImpl;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLKeep;
import com.alibaba.druid.sql.ast.SQLKeep.DenseRank;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.SQLOrderBy;
import com.alibaba.druid.sql.ast.SQLOrderingSpecification;
@@ -753,6 +755,28 @@ public class OracleExprParser extends SQLExprParser {
aggregateExpr.setWithinGroup(withinGroup);
accept(Token.RPAREN);
}
if (lexer.token() == Token.KEEP) {
lexer.nextToken();
SQLKeep keep = new SQLKeep();
accept(Token.LPAREN);
acceptIdentifier("DENSE_RANK");
if (identifierEquals("FIRST")) {
lexer.nextToken();
keep.setDenseRank(DenseRank.FIRST);
} else {
acceptIdentifier("LAST");
keep.setDenseRank(DenseRank.LAST);
}
SQLOrderBy orderBy = this.parseOrderBy();
keep.setOrderBy(orderBy);
aggregateExpr.setKeep(keep);
accept(Token.RPAREN);
}
if (lexer.token() == Token.OVER) {
OracleAnalytic over = new OracleAnalytic();