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Add ON CONFLICT DO REPLACE

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It also adds support for SQLite notations:
- ON CONFLICT IGNORE
- ON CONFLICT REPLACE
This commit is contained in:
Asdine El Hrychy
2021-05-28 14:48:34 +04:00
parent a861ce96a7
commit 357adc9f31
12 changed files with 274 additions and 66 deletions
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25
internal/sql/parser/insert.go
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@@ -200,11 +200,32 @@ func (p *Parser) parseParamOrDocument() (expr.Expr, error) {
func (p *Parser) parseOnConflictClause() (database.OnInsertConflictAction, error) {
// Parse ON CONFLICT DO clause: ON CONFLICT DO action
if ok, err := p.parseOptional(scanner.ON, scanner.CONFLICT, scanner.DO, scanner.NOTHING); !ok || err != nil {
if ok, err := p.parseOptional(scanner.ON, scanner.CONFLICT); !ok || err != nil {
return nil, err
}
return database.OnInsertConflictDoNothing, nil
tok, pos, lit := p.ScanIgnoreWhitespace()
// SQLite compatibility: ON CONFLICT [IGNORE | REPLACE]
switch tok {
case scanner.IGNORE:
return database.OnInsertConflictDoNothing, nil
case scanner.REPLACE:
return database.OnInsertConflictDoReplace, nil
}
// DO [NOTHING | REPLACE]
if tok != scanner.DO {
return nil, newParseError(scanner.Tokstr(tok, lit), []string{scanner.DO.String()}, pos)
}
tok, pos, lit = p.ScanIgnoreWhitespace()
switch tok {
case scanner.NOTHING:
return database.OnInsertConflictDoNothing, nil
case scanner.REPLACE:
return database.OnInsertConflictDoReplace, nil
}
return nil, newParseError(scanner.Tokstr(tok, lit), []string{scanner.NOTHING.String(), scanner.REPLACE.String()}, pos)
}
func (p *Parser) parseReturning() ([]expr.Expr, error) {