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Issue #1800: wrap column default expression in parentheses on MySQL v8.0.13+ when altering a table

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This commit is contained in:
Ansgar Becker
2023-04-28 19:00:52 +02:00
parent 8f2e761828
commit 6c7f80ab62
1 changed files with 12 additions and 2 deletions
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14
source/dbconnection.pas
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@ -10524,14 +10524,24 @@ begin
cdtText: Result := Result + 'DEFAULT '+FConnection.EscapeString(DefaultText); cdtText: Result := Result + 'DEFAULT '+FConnection.EscapeString(DefaultText);
cdtNull: Result := Result + 'DEFAULT NULL'; cdtNull: Result := Result + 'DEFAULT NULL';
cdtAutoInc: Result := Result + 'AUTO_INCREMENT'; cdtAutoInc: Result := Result + 'AUTO_INCREMENT';
cdtExpression: Result := Result + 'DEFAULT '+DefaultText; cdtExpression: begin
if FConnection.Parameters.IsMySQL(True) and (FConnection.ServerVersionInt >= 80013) then
Result := Result + 'DEFAULT ('+DefaultText+')'
else
Result := Result + 'DEFAULT '+DefaultText;
end;
end; end;
case OnUpdateType of case OnUpdateType of
// cdtNothing: leave out whole clause // cdtNothing: leave out whole clause
// cdtText: not supported, but may be valid in MariaDB? // cdtText: not supported, but may be valid in MariaDB?
// cdtNull: not supported, but may be valid in MariaDB? // cdtNull: not supported, but may be valid in MariaDB?
// cdtAutoInc: not valid in ON UPDATE // cdtAutoInc: not valid in ON UPDATE
cdtExpression: Result := Result + ' ON UPDATE '+OnUpdateText; cdtExpression: begin
if FConnection.Parameters.IsMySQL(True) and (FConnection.ServerVersionInt >= 80013) then
Result := Result + ' ON UPDATE ('+OnUpdateText+')'
else
Result := Result + ' ON UPDATE '+OnUpdateText;
end;
end; end;
Result := Result + ' '; Result := Result + ' ';
end; end;