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bug: CONCAT_WS should work with 2 parameters only on MySQL #463

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bug: CONCAT_WS should work with 2 parameters only on MySQL #463

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4 changes: 2 additions & 2 deletions src/Query/Mysql/ConcatWs.php
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Original file line number Diff line number Diff line change
Expand Up @@ -28,11 +28,11 @@ public function parse(Parser $parser): void
$this->values[] = $parser->ArithmeticExpression();

// Add the rest of the strings to the values array. CONCAT_WS must
// be used with at least 2 strings not including the separator.
// be used with at least 1 string not including the separator.

$lexer = $parser->getLexer();

while (count($this->values) < 3 || $lexer->lookahead->type === TokenType::T_COMMA) {
while (count($this->values) < 2 || $lexer->lookahead->type === TokenType::T_COMMA) {
$parser->match(TokenType::T_COMMA);
$peek = $lexer->glimpse();

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