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Support subqueries in FROM and JOIN.

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This commit is contained in:
Philip Hazelden 2021-03-25 20:27:31 +00:00
parent 79b5d9ae1c
commit a6e9ae11ed
1 changed files with 7 additions and 2 deletions
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9
bin/q.py
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@ -547,10 +547,15 @@ class Sql(object):
raise Exception(
'FROM/JOIN is missing a table name after it')
# If there's an open paren, the table is a subquery. There's no name here.
qtable_name = self.sql_parts[idx + 1]
if qtable_name.startswith('('):
idx += 1
continue
# Otherwise, the next part contains the qtable name. In most cases the next part will be only the qtable name.
# We handle one special case here, where this is a subquery as a column: "SELECT (SELECT ... FROM qtable),100 FROM ...".
# In that case, there will be an ending paranthesis as part of the name, and we want to handle this case gracefully.
# We handle one special case here, where this is a subquery such as: "SELECT (SELECT ... FROM qtable),100 FROM ...".
# In that case, there may be an ending paranthesis as part of the name, and we want to handle this case gracefully.
# This is obviously a hack of a hack :) Just until we have
# complete parsing capabilities
if ')' in qtable_name: