The element selection semantics for a numeric field name within an array differ between regular expressions and other query operators. We should make regular expressions consistent with the other operators.
c = db.c;
c.drop();
c.save( { a:[ { 1:'x' }, 'y' ] } );
assert.eq( 1, c.count( { 'a.1':'x' } ) );
assert.eq( 1, c.count( { 'a.1':'y' } ) );
// Does not match, because arrays are not expanded to find nested numeric field names, when matching a regular expression.
assert.eq( 1, c.count( { 'a.1':/x/ } ) );
assert.eq( 1, c.count( { 'a.1':/y/ } ) );
Similar behavior with $all, which also uses getFieldsDotted().
- is related to
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SERVER-7385 Write named field extraction iterators for new Matcher
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- Closed
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