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Merge pull request #10455 from johnjamesjacoby/master 

[2.5] Update database keys for utf8mb4 charset/collation
This commit is contained in:
Mike Jolley 2016-03-02 18:28:22 +00:00
parent 29141af873 ca8ffcc9f4
commit b86e16cef4
1 changed files with 16 additions and 9 deletions
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25
includes/class-wc-install.php
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@ -362,6 +362,13 @@ class WC_Install {
$collate = $wpdb->get_charset_collate();
}
/*
* Indexes have a maximum size of 767 bytes. Historically, we haven't need to be concerned about that.
* As of WordPress 4.2, however, we moved to utf8mb4, which uses 4 bytes per character. This means that an index which
* used to have room for floor(767/3) = 255 characters, now only has room for floor(767/4) = 191 characters.
*/
$max_index_length = 191;
return "
CREATE TABLE {$wpdb->prefix}woocommerce_sessions (
session_id bigint(20) NOT NULL AUTO_INCREMENT,
@ -393,16 +400,16 @@ CREATE TABLE {$wpdb->prefix}woocommerce_attribute_taxonomies (
attribute_orderby varchar(200) NOT NULL,
attribute_public int(1) NOT NULL DEFAULT 1,
PRIMARY KEY (attribute_id),
KEY attribute_name (attribute_name)
KEY attribute_name (attribute_name($max_index_length))
) $collate;
CREATE TABLE {$wpdb->prefix}woocommerce_termmeta (
meta_id bigint(20) NOT NULL auto_increment,
woocommerce_term_id bigint(20) NOT NULL,
meta_key varchar(255) NULL,
meta_key varchar(255) default NULL,
meta_value longtext NULL,
PRIMARY KEY (meta_id),
KEY woocommerce_term_id (woocommerce_term_id),
KEY meta_key (meta_key)
KEY meta_key (meta_key($max_index_length))
) $collate;
CREATE TABLE {$wpdb->prefix}woocommerce_downloadable_product_permissions (
permission_id bigint(20) NOT NULL auto_increment,
@ -417,7 +424,7 @@ CREATE TABLE {$wpdb->prefix}woocommerce_downloadable_product_permissions (
access_expires datetime NULL default null,
download_count bigint(20) NOT NULL DEFAULT 0,
PRIMARY KEY (permission_id),
KEY download_order_key_product (product_id,order_id,order_key,download_id),
KEY download_order_key_product (product_id,order_id,order_key($max_index_length),download_id),
KEY download_order_product (download_id,order_id,product_id)
) $collate;
CREATE TABLE {$wpdb->prefix}woocommerce_order_items (
@ -431,11 +438,11 @@ CREATE TABLE {$wpdb->prefix}woocommerce_order_items (
CREATE TABLE {$wpdb->prefix}woocommerce_order_itemmeta (
meta_id bigint(20) NOT NULL auto_increment,
order_item_id bigint(20) NOT NULL,
meta_key varchar(255) NULL,
meta_key varchar(255) default NULL,
meta_value longtext NULL,
PRIMARY KEY (meta_id),
KEY order_item_id (order_item_id),
KEY meta_key (meta_key)
KEY meta_key (meta_key($max_index_length))
) $collate;
CREATE TABLE {$wpdb->prefix}woocommerce_tax_rates (
tax_rate_id bigint(20) NOT NULL auto_increment,
@ -449,9 +456,9 @@ CREATE TABLE {$wpdb->prefix}woocommerce_tax_rates (
tax_rate_order bigint(20) NOT NULL,
tax_rate_class varchar(200) NOT NULL DEFAULT '',
PRIMARY KEY (tax_rate_id),
KEY tax_rate_country (tax_rate_country),
KEY tax_rate_state (tax_rate_state),
KEY tax_rate_class (tax_rate_class),
KEY tax_rate_country (tax_rate_country($max_index_length)),
KEY tax_rate_state (tax_rate_state($max_index_length)),
KEY tax_rate_class (tax_rate_class($max_index_length)),
KEY tax_rate_priority (tax_rate_priority)
) $collate;
CREATE TABLE {$wpdb->prefix}woocommerce_tax_rate_locations (