暂存

vendor/illuminate/database/Query/Grammars/MariaDbGrammar.php

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+<?php
+
+namespace Illuminate\Database\Query\Grammars;
+
+use Illuminate\Database\Query\Builder;
+use Illuminate\Database\Query\JoinLateralClause;
+use RuntimeException;
+
+class MariaDbGrammar extends MySqlGrammar
+{
+    /**
+     * Compile a "lateral join" clause.
+     *
+     * @param  \Illuminate\Database\Query\JoinLateralClause  $join
+     * @param  string  $expression
+     * @return string
+     *
+     * @throws \RuntimeException
+     */
+    public function compileJoinLateral(JoinLateralClause $join, string $expression): string
+    {
+        throw new RuntimeException('This database engine does not support lateral joins.');
+    }
+
+    /**
+     * Compile a "JSON value cast" statement into SQL.
+     *
+     * @param  string  $value
+     * @return string
+     */
+    public function compileJsonValueCast($value)
+    {
+        return "json_query({$value}, '$')";
+    }
+
+    /**
+     * Compile a query to get the number of open connections for a database.
+     *
+     * @return string
+     */
+    public function compileThreadCount()
+    {
+        return 'select variable_value as `Value` from information_schema.global_status where variable_name = \'THREADS_CONNECTED\'';
+    }
+
+    /**
+     * Determine whether to use a legacy group limit clause for MySQL < 8.0.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @return bool
+     */
+    public function useLegacyGroupLimit(Builder $query)
+    {
+        return false;
+    }
+
+    /**
+     * Wrap the given JSON selector.
+     *
+     * @param  string  $value
+     * @return string
+     */
+    protected function wrapJsonSelector($value)
+    {
+        [$field, $path] = $this->wrapJsonFieldAndPath($value);
+
+        return 'json_value('.$field.$path.')';
+    }
+}