Tom Lane wrote:
Andrew Dunstan <[EMAIL PROTECTED]> writes:
The MySQL syntax is actually "drop table if exists foo ...".
Implementing this unfortunately generates a shift/reduce conflict,
What did you try exactly? I don't see any fundamental reason for
a conflict here. You may just need to rearrange the grammar to postpone
the reduction a bit.
You're right, as usual. I had factored out the IF EXISTS bit into a
seperate rule. When I undid that and instead used 2 rules for DropStmt,
the problem disappeared. (This is because it gives bison more info about
the context of each IF - this has often caught me with bison - I should
have known better).
cheers
andrew
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
