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test(oceanbase): expect Oracle auto limit FETCH FIRST

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Syngnat
2026-07-08 11:52:06 +08:00
parent 07dc1436af
commit 5712b39cf9
1 changed files with 12 additions and 7 deletions
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19
frontend/src/utils/queryAutoLimit.test.ts
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@@ -40,9 +40,9 @@ describe('applyQueryAutoLimit', () => {
['dameng'],
['dm'],
['dm8'],
])('adds ROWNUM limit for %s connections', (dbType) => {
])('adds FETCH FIRST limit for %s connections', (dbType) => {
expect(applyQueryAutoLimit('SELECT * FROM MYCIMLED.EDC_LOG', dbType, 500).sql)
.toBe('SELECT * FROM (SELECT * FROM MYCIMLED.EDC_LOG) WHERE ROWNUM <= 500');
.toBe('SELECT * FROM MYCIMLED.EDC_LOG FETCH FIRST 500 ROWS ONLY');
});
it.each([
@@ -61,8 +61,8 @@ describe('applyQueryAutoLimit', () => {
});
it.each([
['oracle', 'SELECT * FROM (SELECT * FROM users) WHERE ROWNUM <= 500'],
['dm8', 'SELECT * FROM (SELECT * FROM users) WHERE ROWNUM <= 500'],
['oracle', 'SELECT * FROM users FETCH FIRST 500 ROWS ONLY'],
['dm8', 'SELECT * FROM users FETCH FIRST 500 ROWS ONLY'],
['mssql', 'SELECT TOP 500 * FROM users'],
['postgresql', 'SELECT * FROM users LIMIT 500'],
['gauss-db', 'SELECT * FROM users LIMIT 500'],
@@ -76,12 +76,17 @@ describe('applyQueryAutoLimit', () => {
it('keeps trailing semicolon and comments after injected Oracle limit', () => {
expect(applyQueryAutoLimit('SELECT * FROM MYCIMLED.EDC_LOG; -- preview', 'oracle', 500).sql)
.toBe('SELECT * FROM (SELECT * FROM MYCIMLED.EDC_LOG) WHERE ROWNUM <= 500; -- preview');
.toBe('SELECT * FROM MYCIMLED.EDC_LOG FETCH FIRST 500 ROWS ONLY; -- preview');
});
it('uses Oracle 11g compatible ROWNUM limit for simple table queries', () => {
it('uses Oracle FETCH FIRST limit for simple table queries', () => {
expect(applyQueryAutoLimit('select 1 from xxx', 'oracle', 500).sql)
.toBe('SELECT * FROM (select 1 from xxx) WHERE ROWNUM <= 500');
.toBe('select 1 from xxx FETCH FIRST 500 ROWS ONLY');
});
it('keeps ORDER BY semantics with Oracle FETCH FIRST', () => {
expect(applyQueryAutoLimit('SELECT * FROM users ORDER BY created_at DESC', 'oracle', 100).sql)
.toBe('SELECT * FROM users ORDER BY created_at DESC FETCH FIRST 100 ROWS ONLY');
});
it('does not add another generic limit when SQL already limits rows', () => {