Examples with Limit io.shardingjdbc.core.parsing.parser.context.limit.Limit used on opensource projects

Example 6 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit in project sharding-jdbc by shardingjdbc.

the class SQLRewriteEngineTest method assertRewriteForTopAndRowNumberForNotRewriteLimit.

@Test
public void assertRewriteForTopAndRowNumberForNotRewriteLimit() {
    selectStatement.setLimit(new Limit(DatabaseType.SQLServer));
    selectStatement.getLimit().setOffset(new LimitValue(2, -1, true));
    selectStatement.getLimit().setRowCount(new LimitValue(4, -1, false));
    selectStatement.getSqlTokens().add(new TableToken(85, "table_x"));
    selectStatement.getSqlTokens().add(new OffsetToken(123, 2));
    selectStatement.getSqlTokens().add(new RowCountToken(26, 4));
    SQLRewriteEngine rewriteEngine = new SQLRewriteEngine(shardingRule, "SELECT * FROM (SELECT TOP(4) row_number() OVER (ORDER BY x.id) AS rownum_, x.id FROM table_x x) AS row_ WHERE row_.rownum_>2", DatabaseType.SQLServer, selectStatement);
    assertThat(rewriteEngine.rewrite(false).toSQL(tableTokens, null), is("SELECT * FROM (SELECT TOP(4) row_number() OVER (ORDER BY x.id) AS rownum_, x.id FROM table_1 x) AS row_ WHERE row_.rownum_>2"));
}

Example 7 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit in project sharding-jdbc by shardingjdbc.

the class SQLRewriteEngineTest method assertRewriteForRowNumForMemoryGroupBy.

@Test
public void assertRewriteForRowNumForMemoryGroupBy() {
    selectStatement.setLimit(new Limit(DatabaseType.Oracle));
    selectStatement.getLimit().setOffset(new LimitValue(2, -1, true));
    selectStatement.getLimit().setRowCount(new LimitValue(4, -1, false));
    selectStatement.getSqlTokens().add(new TableToken(68, "table_x"));
    selectStatement.getSqlTokens().add(new OffsetToken(119, 2));
    selectStatement.getSqlTokens().add(new RowCountToken(98, 4));
    selectStatement.getOrderByItems().add(new OrderItem("x", "id", OrderDirection.ASC, OrderDirection.ASC, Optional.<String>absent()));
    selectStatement.getGroupByItems().add(new OrderItem("x", "id", OrderDirection.DESC, OrderDirection.ASC, Optional.<String>absent()));
    SQLRewriteEngine rewriteEngine = new SQLRewriteEngine(shardingRule, "SELECT * FROM (SELECT row_.*, rownum rownum_ FROM (SELECT x.id FROM table_x x) row_ WHERE rownum<=4) t WHERE t.rownum_>2", DatabaseType.Oracle, selectStatement);
    assertThat(rewriteEngine.rewrite(true).toSQL(tableTokens, null), is("SELECT * FROM (SELECT row_.*, rownum rownum_ FROM (SELECT x.id FROM table_1 x) row_ WHERE rownum<=2147483647) t WHERE t.rownum_>0"));
}

Example 8 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit in project sharding-jdbc by shardingjdbc.

the class SQLRewriteEngineTest method assertRewriteForRowNum.

@Test
public void assertRewriteForRowNum() {
    selectStatement.setLimit(new Limit(DatabaseType.Oracle));
    selectStatement.getLimit().setOffset(new LimitValue(2, -1, true));
    selectStatement.getLimit().setRowCount(new LimitValue(4, -1, false));
    selectStatement.getSqlTokens().add(new TableToken(68, "table_x"));
    selectStatement.getSqlTokens().add(new OffsetToken(119, 2));
    selectStatement.getSqlTokens().add(new RowCountToken(98, 4));
    SQLRewriteEngine rewriteEngine = new SQLRewriteEngine(shardingRule, "SELECT * FROM (SELECT row_.*, rownum rownum_ FROM (SELECT x.id FROM table_x x) row_ WHERE rownum<=4) t WHERE t.rownum_>2", DatabaseType.Oracle, selectStatement);
    assertThat(rewriteEngine.rewrite(true).toSQL(tableTokens, null), is("SELECT * FROM (SELECT row_.*, rownum rownum_ FROM (SELECT x.id FROM table_1 x) row_ WHERE rownum<=4) t WHERE t.rownum_>0"));
}

Example 9 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit in project sharding-jdbc by shardingjdbc.

the class SQLRewriteEngineTest method assertRewriteForLimitForNotRewriteLimit.

@Test
public void assertRewriteForLimitForNotRewriteLimit() {
    selectStatement.setLimit(new Limit(DatabaseType.MySQL));
    selectStatement.getLimit().setOffset(new LimitValue(2, -1, true));
    selectStatement.getLimit().setRowCount(new LimitValue(2, -1, false));
    selectStatement.getSqlTokens().add(new TableToken(17, "table_x"));
    selectStatement.getSqlTokens().add(new OffsetToken(33, 2));
    selectStatement.getSqlTokens().add(new RowCountToken(36, 2));
    SQLRewriteEngine rewriteEngine = new SQLRewriteEngine(shardingRule, "SELECT x.id FROM table_x x LIMIT 2, 2", DatabaseType.MySQL, selectStatement);
    assertThat(rewriteEngine.rewrite(false).toSQL(tableTokens, null), is("SELECT x.id FROM table_1 x LIMIT 2, 2"));
}

Example 10 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit in project sharding-jdbc by shardingjdbc.

the class SQLRewriteEngineTest method assertRewriteForLimit.

@Test
public void assertRewriteForLimit() {
    selectStatement.setLimit(new Limit(DatabaseType.MySQL));
    selectStatement.getLimit().setOffset(new LimitValue(2, -1, true));
    selectStatement.getLimit().setRowCount(new LimitValue(2, -1, false));
    selectStatement.getSqlTokens().add(new TableToken(17, "table_x"));
    selectStatement.getSqlTokens().add(new OffsetToken(33, 2));
    selectStatement.getSqlTokens().add(new RowCountToken(36, 2));
    SQLRewriteEngine rewriteEngine = new SQLRewriteEngine(shardingRule, "SELECT x.id FROM table_x x LIMIT 2, 2", DatabaseType.MySQL, selectStatement);
    assertThat(rewriteEngine.rewrite(true).toSQL(tableTokens, null), is("SELECT x.id FROM table_1 x LIMIT 0, 4"));
}