Table: filmography_1950s_6
Columns: title
series
director
production_number
release_date

Question: What was the production number of the episode titel of pre-hysterical hare?
SQL: SELECT COUNT("production_number") FROM filmography_1950s_6 WHERE "title" = 'pre-hysterical hare'

Question: What director had a production number of 1490?
SQL: SELECT "director" FROM filmography_1950s_6 WHERE "production_number" = 1490

Question: Which title was directed by chuck jones and released on 1958-04-12?
SQL: SELECT "title" FROM filmography_1950s_6 WHERE "director" = 'chuck jones' AND "release_date" = '1958-04-12'