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parser: reset lexer.identifierDot correctly when reusing parsers #45903

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merged 2 commits into from
Aug 8, 2023
Merged

parser: reset lexer.identifierDot correctly when reusing parsers #45903

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1a43b1c
fixup
qw4990 Aug 8, 2023
082d30d
fixup
qw4990 Aug 8, 2023
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1 change: 1 addition & 0 deletions parser/lexer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ func (s *Scanner) reset(sql string) {
s.stmtStartPos = 0
s.inBangComment = false
s.lastKeyword = 0
s.identifierDot = false
}

func (s *Scanner) stmtText() string {
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12 changes: 12 additions & 0 deletions parser/parser_test.go
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Expand Up @@ -7389,6 +7389,18 @@ func TestTTLTableOption(t *testing.T) {
RunTest(t, table, false)
}

func TestIssue45898(t *testing.T) {
p := parser.New()
p.ParseSQL("a.")
stmts, _, err := p.ParseSQL("select count(1) from t")
require.NoError(t, err)
var sb strings.Builder
restoreCtx := NewRestoreCtx(DefaultRestoreFlags, &sb)
sb.Reset()
stmts[0].Restore(restoreCtx)
require.Equal(t, "SELECT COUNT(1) FROM `t`", sb.String())
}

func TestMultiStmt(t *testing.T) {
p := parser.New()
stmts, _, err := p.Parse("SELECT 'foo'; SELECT 'foo;bar','baz'; select 'foo' , 'bar' , 'baz' ;select 1", "", "")
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