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Type:
Bug
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Resolution: Duplicate
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Priority:
Major - P3
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Affects Version/s: 2.5.5
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Component/s: Index Maintenance
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ALL
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When creating a duplicate normal index twice, you simply get a notification in the command return structure that tells you no indexes were created:
> db.col1.runCommand({ 'createIndexes' : 'col1', indexes: [ { name: "e_1", key: { e: 1 } } ] } );
{
"createdCollectionAutomatically" : false,
"numIndexesBefore" : 2,
"numIndexesAfter" : 3,
"ok" : 1
}
> db.col1.runCommand({ 'createIndexes' : 'col1', indexes: [ { name: "e_1", key: { e: 1 } } ] } );
{
"numIndexesBefore" : 3,
"note" : "all indexes already exist",
"noChangesMade" : true,
"ok" : 1
}
But when we do this with a "text" column, then it fails with an error:
> db.col1.runCommand({ 'createIndexes' : 'col1', indexes: [ { name: "d_1", key: { d: 'text' } } ] } );
{
"createdCollectionAutomatically" : true,
"numIndexesBefore" : 1,
"numIndexesAfter" : 2,
"ok" : 1
}
> db.col1.runCommand({ 'createIndexes' : 'col1', indexes: [ { name: "d_1", key: { d: 'text' } } ] } );
{
"ok" : 0,
"errmsg" : "Trying to create an index with same name d_1 with different key spec { d: \"text\" } vs existing spec { _fts: \"text\", _ftsx: 1 }",
"code" : 67
}
- duplicates
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- Closed
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