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Bug
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Resolution: Fixed
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Major
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3.1.1
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None
The migration tries to delete the old key:
'drop_keys' => array(
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$this->table_prefix . 'search_wordmatch' => array(
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'unq_mtch',
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),
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),
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tools:
// Remove keys?
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if (!empty($schema_changes['drop_keys']))
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{
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foreach ($schema_changes['drop_keys'] as $table => $indexes)
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{
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foreach ($indexes as $index_name)
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{
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if (!$this->sql_index_exists($table, $index_name))
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{
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continue;
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}
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|
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$result = $this->sql_index_drop($table, $index_name);
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...
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}
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}
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}
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However, sql_index_exists() ignores UNIQUE keys as per doc block:
Check if a specified index exists in table. Does not return PRIMARY KEY and UNIQUE indexes.
Since the key we are trying to delete is a unique key, the function returns false and we skip the drop query (which wouldn't even work on some DB backends?)
So we actually need to implement sql_unique_index_drop()