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improve performance of sequence lookup

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This commit is contained in:
Matthew Bucci
2024-01-16 21:49:06 -08:00
parent 66d8a3df0e
commit 98bcd4aad0
1 changed files with 11 additions and 0 deletions
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11
pg4wp/driver_pgsql.php
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@ -1059,9 +1059,20 @@ function wpsqli_get_list_of_sequences(&$connection)
// Get the primary sequence for a table // Get the primary sequence for a table
function wpsqli_get_primary_sequence_for_table(&$connection, $table) function wpsqli_get_primary_sequence_for_table(&$connection, $table)
{ {
// TODO: it should be possible to use a WP transient here for object caching
global $sequence_lookup;
if (empty($sequence_lookup)) {
$sequence_lookup = [];
}
if (isset($sequence_lookup[$table])) {
return $sequence_lookup[$table];
}
$sequences = wpsqli_get_list_of_sequences($connection); $sequences = wpsqli_get_list_of_sequences($connection);
foreach($sequences as $sequence) { foreach($sequences as $sequence) {
if (strncmp($sequence, $table, strlen($table)) === 0) { if (strncmp($sequence, $table, strlen($table)) === 0) {
$sequence_lookup[$table] = $sequence;
return $sequence; return $sequence;
} }
} }