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Code Issues Releases Wiki Activity

refactor sql parser. sqlite support limit clause. #1556

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This commit is contained in:
wenshao
2016-12-26 20:11:49 +08:00
parent 74b456d659
commit 77bfab01f5
32 changed files with 396 additions and 270 deletions
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src/main/java/com/alibaba/druid/sql/PagerUtils.java
+3 -3
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@@ -45,7 +45,6 @@ import com.alibaba.druid.sql.ast.SQLLimit;
import com.alibaba.druid.sql.dialect.odps.ast.OdpsSelectQueryBlock;
import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleSelectQueryBlock;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectQueryBlock;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectQueryBlock.PGLimit;
import com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerSelectQueryBlock;
import com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerTop;
import com.alibaba.druid.util.JdbcConstants;
@@ -129,7 +128,7 @@ public class PagerUtils {
throw new IllegalArgumentException("limit already exists.");
}
PGLimit limit = new PGLimit();
SQLLimit limit = new SQLLimit();
if (offset > 0) {
limit.setOffset(new SQLIntegerExpr(offset));
}
@@ -487,7 +486,8 @@ public class PagerUtils {
}
if (query instanceof OdpsSelectQueryBlock) {
SQLExpr rowCountExpr = ((OdpsSelectQueryBlock) query).getLimit();
SQLLimit limit = ((OdpsSelectQueryBlock) query).getLimit();
SQLExpr rowCountExpr = limit != null ? limit.getRowCount() : null;
if (rowCountExpr instanceof SQLNumericLiteralExpr) {
int rowCount = ((SQLNumericLiteralExpr) rowCountExpr).getNumber().intValue();