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[SPARK-32576][SQL][TEST][FOLLOWUP] Add tests for all the character array types in PostgresIntegrationSuite #29397

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maropu wants to merge 2 commits into from
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[SPARK-32576][SQL][TEST][FOLLOWUP] Add tests for all the character array types in PostgresIntegrationSuite #29397

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37e7c32
Fix
maropu Aug 10, 2020
9907bf5
add a prefix
maropu Aug 10, 2020
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19 changes: 19 additions & 0 deletions ...integration-tests/src/test/scala/org/apache/spark/sql/jdbc/PostgresIntegrationSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,13 @@ class PostgresIntegrationSuite extends DockerJDBCIntegrationSuite {
).executeUpdate()
conn.prepareStatement("INSERT INTO char_types VALUES " +
"('abcd', 'efgh', 'ijkl', 'mnop', 'q')").executeUpdate()

conn.prepareStatement("CREATE TABLE char_array_types (" +
"c0 char(4)[], c1 character(4)[], c2 character varying(4)[], c3 varchar(4)[], c4 bpchar[])"
).executeUpdate()
conn.prepareStatement("INSERT INTO char_array_types VALUES " +
"""('{"a", "bcd"}', '{"ef", "gh"}', '{"i", "j", "kl"}', '{"mnop"}', '{"q", "r"}')"""
).executeUpdate()
}

test("Type mapping for various types") {
Expand Down Expand Up @@ -235,4 +242,16 @@ class PostgresIntegrationSuite extends DockerJDBCIntegrationSuite {
assert(row(0).getString(3) === "mnop")
assert(row(0).getString(4) === "q")
}

test("character array type tests") {
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val df = sqlContext.read.jdbc(jdbcUrl, "char_array_types", new Properties)
val row = df.collect()
assert(row.length == 1)

@yaooqinn yaooqinn Aug 10, 2020

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super nit: ===

@maropu maropu Aug 10, 2020

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oh, I missed that. But, its trivial, so I'll fix it next time I update this file. Anyway, thanks for the check, @yaooqinn

@HyukjinKwon HyukjinKwon Aug 10, 2020

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That's alright. We don't currently have a style rule for that. == is already being used here and there too though I prefer === as well because it can compare, for example, arrays properly with a good error message.

assert(row(0).length === 5)
assert(row(0).getSeq[String](0) === Seq("a ", "bcd "))
assert(row(0).getSeq[String](1) === Seq("ef ", "gh "))
assert(row(0).getSeq[String](2) === Seq("i", "j", "kl"))
assert(row(0).getSeq[String](3) === Seq("mnop"))
assert(row(0).getSeq[String](4) === Seq("q", "r"))
}
}