use different file names for tests

Author: myrrc

test/sql/nulls.test

@@ -20,11 +20,11 @@ COPY ((
     CAST(generate_series as decimal(15,2)) as s1, 
     generate_series + 1 as s2 
   FROM generate_series(5,8))) 
-TO '__TEST_DIR__/test.vortex' (FORMAT VORTEX)
+TO '__TEST_DIR__/nulls.vortex' (FORMAT VORTEX)
 
 # read vortex
 query III
-SELECT s, s1, s2 FROM read_vortex('__TEST_DIR__/test.vortex') ORDER BY s;
+SELECT s, s1, s2 FROM read_vortex('__TEST_DIR__/nulls.vortex') ORDER BY s;
 ----
 0	NULL	NULL
 1	NULL	NULL

test/sql/sequence.test

@@ -8,14 +8,14 @@ require vortex
 
 # copy vortex
 statement ok
-COPY (SELECT * from generate_series(0, 4)) TO '__TEST_DIR__/test.vortex' (FORMAT VORTEX)
+COPY (SELECT * from generate_series(0, 4)) TO '__TEST_DIR__/sequence.vortex' (FORMAT VORTEX)
 
 # read vortex
 query I
-SELECT * FROM read_vortex('__TEST_DIR__/test.vortex');
+SELECT * FROM read_vortex('__TEST_DIR__/sequence.vortex');
 ----
 0
 1
 2
 3
-4
+4

test/sql/table.test_slow

@@ -50,4 +50,4 @@ SELECT
 FROM generate_series(1, 40000) AS t(seq);
 
 statement ok
-COPY generated_data_table TO '__TEST_DIR__/table_test.vortex' (FORMAT VORTEX);
+COPY generated_data_table TO '__TEST_DIR__/table_slow.vortex' (FORMAT VORTEX);