CREATE TABLE keyphrase (keyphraseid NUMBER, keyphrasename VARCHAR2)
CREATE TABLE paperkeyphrase (paperid NUMBER, keyphraseid NUMBER)
CREATE TABLE paper (paperid NUMBER, title VARCHAR2, venueid NUMBER, year NUMBER, numciting NUMBER, numcitedby NUMBER, journalid NUMBER)
CREATE TABLE paperfield (fieldid NUMBER, paperid NUMBER)
CREATE TABLE venue (venueid NUMBER, venuename VARCHAR2)
CREATE TABLE cite (citingpaperid NUMBER, citedpaperid NUMBER)
CREATE TABLE writes (paperid NUMBER, authorid NUMBER)
CREATE TABLE field (fieldid NUMBER)
CREATE TABLE journal (journalid NUMBER, journalname VARCHAR2)
CREATE TABLE paperdataset (paperid NUMBER, datasetid NUMBER)
CREATE TABLE dataset (datasetid NUMBER, datasetname VARCHAR2)
CREATE TABLE author (authorid NUMBER, authorname VARCHAR2)

What was Jennifer Widom 's first publication ?
SELECT DISTINCT paper.paperid, paper.year FROM author, paper, writes WHERE author.authorname = 'Jennifer Widom' AND paper.year = (SELECT MIN(PAPERalias1.year) FROM author AS AUTHORalias1, paper AS PAPERalias1, writes AS WRITESalias1 WHERE AUTHORalias1.authorname = 'Jennifer Widom' AND WRITESalias1.authorid = AUTHORalias1.authorid AND WRITESalias1.paperid = PAPERalias1.paperid) AND writes.authorid = author.authorid AND writes.paperid = paper.paperid
WITH "_u_0" AS (SELECT MIN("PAPERalias1"."year") FROM "author" "AUTHORalias1" JOIN "writes" "WRITESalias1" ON "AUTHORalias1"."authorid" = "WRITESalias1"."authorid" JOIN "paper" "PAPERalias1" ON "PAPERalias1"."paperid" = "WRITESalias1"."paperid" WHERE "AUTHORalias1"."authorname" = 'Jennifer Widom') SELECT DISTINCT "paper"."paperid", "paper"."year" FROM "author" JOIN "writes" ON "author"."authorid" = "writes"."authorid" JOIN "paper" ON "paper"."paperid" = "writes"."paperid" JOIN "_u_0" "_u_0" ON "_u_0"."" = "paper"."year" WHERE "author"."authorname" = 'Jennifer Widom'