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Add UNIQUE index on itemDataValues values

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This commit is contained in:
Dan Stillman 2008-07-07 14:00:34 +00:00
parent 566a338c98
commit 9596cece44
2 changed files with 13 additions and 1 deletions
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12
chrome/content/zotero/xpcom/schema.js
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@ -1415,6 +1415,18 @@ Zotero.Schema = new function(){
statement.reset();
Zotero.DB.query("CREATE UNIQUE INDEX items_key ON items(key)");
var rows = Zotero.DB.columnQuery("SELECT GROUP_CONCAT(valueID) FROM itemDataValues GROUP BY value HAVING COUNT(*) > 1");
for each(var row in rows) {
var ids = row.split(',');
var deleteIDs = [];
for (var j=1; j<ids.length; j++) {
deleteIDs.push(parseInt(ids[j]));
}
Zotero.DB.query("UPDATE itemData SET valueID=? WHERE valueID IN (" + deleteIDs.map(function () '?').join() + ")", [parseInt(ids[0])].concat(deleteIDs));
Zotero.DB.query("DELETE FROM itemDataValues WHERE valueID IN (" + deleteIDs.map(function () '?').join() + ")", deleteIDs);
}
Zotero.DB.query("CREATE UNIQUE INDEX itemDataValues_value ON itemDataValues(value)");
// Collections
var collections = Zotero.DB.query("SELECT * FROM collections");
Zotero.DB.query("DROP TABLE collections");

2
userdata.sql
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@ -28,7 +28,7 @@ CREATE TABLE items (
CREATE TABLE itemDataValues (
valueID INTEGER PRIMARY KEY,
value
value UNIQUE
);
-- Type-specific data for individual items