Thanks for reply, it is clear now =)
On 09/17/2015 08:34 PM, David G.
Johnston wrote:
On Thursday, September 17, 2015, David G. Johnston
<david.g.johnston@xxxxxxxxx>
wrote:
On Thursday,
September 17, 2015, Антон Бушмелев <bushmelev.aa@xxxxxxxxx> wrote:
Hello, google nothing for @
operator =(, what does this mean field1 <@ ( subquery )
?
It would depend on what field1 is.
Typically <@ is a contains/contained-by operator. Is
this context the subquery is checked to see if it contains the
value of field1.
David J.
To clarify I think that it means that for each row returned
by the subquery, the value of filed1 is checked to see if the
field in the subquery contains the given value. Use use ANY/ALL
to indicate whether to care if on,y so,e rows or all rows need
match in order for the entire _expression_ to pass.
David J.
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