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fix(pgcdc): fix uppercase-identifier of pgcdc #17754

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merged 9 commits into from
Jul 23, 2024
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fix(pgcdc): fix uppercase-identifier of pgcdc #17754

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167e938
fix(cdc): fix uppercase-identifier of pgcdc
KeXiangWang Jul 19, 2024
3ea9d5b
add test
KeXiangWang Jul 19, 2024
0670570
use uppercase identifier
KeXiangWang Jul 19, 2024
7cf41c9
fix test
KeXiangWang Jul 19, 2024
bce6b62
Merge branch 'main' into wkx/fix-pgcdc-uppercase-identifier
KeXiangWang Jul 22, 2024
938f610
fix test
KeXiangWang Jul 22, 2024
4c3b194
fix test
KeXiangWang Jul 22, 2024
c20713b
fix test
KeXiangWang Jul 22, 2024
8aa28b0
fix test
KeXiangWang Jul 23, 2024
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16 changes: 16 additions & 0 deletions ci/scripts/e2e-source-test.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,22 @@ export PGHOST=db PGPORT=5432 PGUSER=postgres PGPASSWORD=postgres PGDATABASE=cdc_
createdb
psql < ./e2e_test/source/cdc/postgres_cdc.sql

# to test upper case database
psql -c "CREATE DATABASE \"UpperDb\";"

export PGHOST=db PGPORT=5432 PGUSER=postgres PGPASSWORD=postgres PGDATABASE=UpperDb
psql -c "
CREATE SCHEMA \"UpperSchema\";
CREATE TABLE \"UpperSchema\".\"Orders\" (
id int PRIMARY KEY,
name varchar
);
INSERT INTO \"UpperSchema\".\"Orders\" VALUES (1, 'happy');
"
risedev slt './e2e_test/source/cdc/cdc.upper_case.postgres.slt'

export PGHOST=db PGPORT=5432 PGUSER=postgres PGPASSWORD=postgres PGDATABASE=cdc_test

echo "--- starting risingwave cluster"
RUST_LOG="debug,risingwave_stream=info,risingwave_batch=info,risingwave_storage=info" \
risedev ci-start ci-1cn-1fe-with-recovery
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44 changes: 44 additions & 0 deletions e2e_test/source/cdc/cdc.upper_case.postgres.slt
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@@ -0,0 +1,44 @@
# For upper case UpperDb
statement ok
create source pg_source_upper with (
connector = 'postgres-cdc',
hostname = '${PGHOST:localhost}',
port = '${PGPORT:5432}',
username = '${PGUSER:$USER}',
password = '${PGPASSWORD:}',
database.name = '${PGDATABASE:postgres}',
slot.name = 'pg_slot'
);

statement ok
CREATE TABLE orders_shared (
id int PRIMARY KEY,
name varchar,
) FROM pg_source_upper TABLE 'UpperSchema.Orders';

query II
select * from orders_shared order by id;
----
1 happy

statement ok
create table orders (
id int,
name varchar,
PRIMARY KEY (id)
) with (
connector = 'postgres-cdc',
hostname = '${PGHOST:localhost}',
port = '${PGPORT:5432}',
username = '${PGUSER:$USER}',
password = '${PGPASSWORD:}',
database.name = '${PGDATABASE:postgres}',
schema.name = 'UpperSchema',
table.name = 'Order',
slot.name = 'orders'
);

query II
select * from orders order by id;
----
1 happy
2 changes: 1 addition & 1 deletion ...ector-service/src/main/java/com/risingwave/connector/source/common/PostgresValidator.java
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Expand Up @@ -180,7 +180,7 @@ private void validateTableSchema() throws SQLException {
// check primary key
// reference: https://wiki.postgresql.org/wiki/Retrieve_primary_key_columns
try (var stmt = jdbcConnection.prepareStatement(ValidatorUtils.getSql("postgres.pk"))) {
stmt.setString(1, this.schemaName + "." + this.tableName);
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Why not just quote the object name?
String.format("\"%s\".\"%s\"", this.schemaName, this.tableName)

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Can be another choice. I noticed that other sql statements use schemaName and tableName, so I think we should keep them consistent. Do you prefer "\"%s\".\"%s\""?

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The change to the validate sql needs to join two more system tables, I think it can be avoided.

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updated.

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@xiangjinwu xiangjinwu Jul 19, 2024 •
edited
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Slightly prefer to keep consistent with other places, unless the cost of join is high.

Strictly speaking the manual quoting above is wrong, but I do believe no one would challenge this in practice:

test=# create table "my_test""table" ("Foo" int); -- two quotes required
CREATE TABLE
test=# select relname, quote_ident(relname) from pg_class where relname ^@ 'my_te';
    relname    |   quote_ident    
---------------+------------------
 my_test"table | "my_test""table"
(1 row)

(pgdoc)

Embedded quotes are properly doubled

stmt.setString(1, String.format("\"%s\".\"%s\"", this.schemaName, this.tableName));
var res = stmt.executeQuery();
var pkFields = new HashSet<String>();
while (res.next()) {
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