createdb: compare strategy case-insensitive

When specifying the createdb strategy, the documentation suggests valid
options are FILE_COPY and WAL_LOG, but the code does case-sensitive
comparison and accepts only "file_copy" and "wal_log" as valid.

Fixed by doing a case-insensitive comparison using pg_strcasecmp(), same
as for other string parameters nearby.

While at it, apply fmtId() to a nearby "locale_provider". This already
did the comparison in case-insensitive way, but the value would not be
double-quoted, confusing the parser and the error message.

Backpatch to 15, where the strategy was introduced.

Backpatch-through: 15
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/90c6913a-1dd2-42b4-8365-ce3b09c39b17@enterprisedb.com

diff --git a/src/backend/commands/dbcommands.c b/src/backend/commands/dbcommands.c
index aa48fdf8d21f20f1a4c1cd9349d8befb5268cca4..7295800a7d8c1065b6833d21fb6dffce355885a2 100644 (file)
--- a/src/backend/commands/dbcommands.c
+++ b/src/backend/commands/dbcommands.c
@@ -1006,15 +1006,15 @@ createdb(ParseState *pstate, const CreatedbStmt *stmt)
        char       *strategy;
 
        strategy = defGetString(dstrategy);
-       if (strcmp(strategy, "wal_log") == 0)
+       if (pg_strcasecmp(strategy, "wal_log") == 0)
            dbstrategy = CREATEDB_WAL_LOG;
-       else if (strcmp(strategy, "file_copy") == 0)
+       else if (pg_strcasecmp(strategy, "file_copy") == 0)
            dbstrategy = CREATEDB_FILE_COPY;
        else
            ereport(ERROR,
                    (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("invalid create database strategy \"%s\"", strategy),
-                    errhint("Valid strategies are \"wal_log\", and \"file_copy\".")));
+                    errhint("Valid strategies are \"wal_log\" and \"file_copy\".")));
    }
 
    /* If encoding or locales are defaulted, use source's setting */

diff --git a/src/bin/scripts/createdb.c b/src/bin/scripts/createdb.c
index 9ca86a3e53d5e1b2fab7bcc97b0d3cc789e7e7bd..ef34b24890cd1309ce989e16947f51c89cbc0384 100644 (file)
--- a/src/bin/scripts/createdb.c
+++ b/src/bin/scripts/createdb.c
@@ -227,7 +227,7 @@ main(int argc, char *argv[])
        appendStringLiteralConn(&sql, lc_ctype, conn);
    }
    if (locale_provider)
-       appendPQExpBuffer(&sql, " LOCALE_PROVIDER %s", locale_provider);
+       appendPQExpBuffer(&sql, " LOCALE_PROVIDER %s", fmtId(locale_provider));
    if (icu_locale)
    {
        appendPQExpBufferStr(&sql, " ICU_LOCALE ");

diff --git a/src/bin/scripts/t/020_createdb.pl b/src/bin/scripts/t/020_createdb.pl
index 40291924e5d1295da2c087170967089e08b0a579..f44775df44e158cc9b7483c5a7554ce83d78e1a1 100644 (file)
--- a/src/bin/scripts/t/020_createdb.pl
+++ b/src/bin/scripts/t/020_createdb.pl
@@ -175,11 +175,21 @@ $node->issues_sql_like(
    qr/statement: CREATE DATABASE foobar6 STRATEGY wal_log TEMPLATE foobar2/,
    'create database with WAL_LOG strategy');
 
+$node->issues_sql_like(
+   [ 'createdb', '-T', 'foobar2', '-S', 'WAL_LOG', 'foobar6s' ],
+   qr/statement: CREATE DATABASE foobar6s STRATEGY "WAL_LOG" TEMPLATE foobar2/,
+   'create database with WAL_LOG strategy');
+
 $node->issues_sql_like(
    [ 'createdb', '-T', 'foobar2', '-S', 'file_copy', 'foobar7' ],
    qr/statement: CREATE DATABASE foobar7 STRATEGY file_copy TEMPLATE foobar2/,
    'create database with FILE_COPY strategy');
 
+$node->issues_sql_like(
+   [ 'createdb', '-T', 'foobar2', '-S', 'FILE_COPY', 'foobar7s' ],
+   qr/statement: CREATE DATABASE foobar7s STRATEGY "FILE_COPY" TEMPLATE foobar2/,
+   'create database with FILE_COPY strategy');
+
 # Create database owned by role_foobar.
 $node->issues_sql_like(
    [ 'createdb', '-T', 'foobar2', '-O', 'role_foobar', 'foobar8' ],