Added a test #9160

dbms/tests/queries/0_stateless/01083_match_zero_byte.reference

@@ -0,0 +1,264 @@
+1
+1
+1
+1
+1
+1
+4 key="v" 	10	v
+\0 key="v" 	10	v
+0	v
+1	v
+2	v
+3	v
+4	v
+5	v
+6	v
+7	v
+8	v
+9	v
+10	v
+11	v
+12	v
+13	v
+14	v
+15	v
+16	v
+17	v
+18	v
+19	v
+20	v
+21	v
+22	v
+23	v
+24	v
+25	v
+26	v
+27	v
+28	v
+29	v
+30	v
+31	v
+32	v
+33	v
+34	v
+35	v
+36	v
+37	v
+38	v
+39	v
+40	v
+41	v
+42	v
+43	v
+44	v
+45	v
+46	v
+47	v
+48	v
+49	v
+50	v
+51	v
+52	v
+53	v
+54	v
+55	v
+56	v
+57	v
+58	v
+59	v
+60	v
+61	v
+62	v
+63	v
+64	v
+65	v
+66	v
+67	v
+68	v
+69	v
+70	v
+71	v
+72	v
+73	v
+74	v
+75	v
+76	v
+77	v
+78	v
+79	v
+80	v
+81	v
+82	v
+83	v
+84	v
+85	v
+86	v
+87	v
+88	v
+89	v
+90	v
+91	v
+92	v
+93	v
+94	v
+95	v
+96	v
+97	v
+98	v
+99	v
+100	v
+101	v
+102	v
+103	v
+104	v
+105	v
+106	v
+107	v
+108	v
+109	v
+110	v
+111	v
+112	v
+113	v
+114	v
+115	v
+116	v
+117	v
+118	v
+119	v
+120	v
+121	v
+122	v
+123	v
+124	v
+125	v
+126	v
+127	v
+128	v
+129	v
+130	v
+131	v
+132	v
+133	v
+134	v
+135	v
+136	v
+137	v
+138	v
+139	v
+140	v
+141	v
+142	v
+143	v
+144	v
+145	v
+146	v
+147	v
+148	v
+149	v
+150	v
+151	v
+152	v
+153	v
+154	v
+155	v
+156	v
+157	v
+158	v
+159	v
+160	v
+161	v
+162	v
+163	v
+164	v
+165	v
+166	v
+167	v
+168	v
+169	v
+170	v
+171	v
+172	v
+173	v
+174	v
+175	v
+176	v
+177	v
+178	v
+179	v
+180	v
+181	v
+182	v
+183	v
+184	v
+185	v
+186	v
+187	v
+188	v
+189	v
+190	v
+191	v
+192	v
+193	v
+194	v
+195	v
+196	v
+197	v
+198	v
+199	v
+200	v
+201	v
+202	v
+203	v
+204	v
+205	v
+206	v
+207	v
+208	v
+209	v
+210	v
+211	v
+212	v
+213	v
+214	v
+215	v
+216	v
+217	v
+218	v
+219	v
+220	v
+221	v
+222	v
+223	v
+224	v
+225	v
+226	v
+227	v
+228	v
+229	v
+230	v
+231	v
+232	v
+233	v
+234	v
+235	v
+236	v
+237	v
+238	v
+239	v
+240	v
+241	v
+242	v
+243	v
+244	v
+245	v
+246	v
+247	v
+248	v
+249	v
+250	v
+251	v
+252	v
+253	v
+254	v
+255	v

dbms/tests/queries/0_stateless/01083_match_zero_byte.sql

@@ -0,0 +1,17 @@
+select match('a key="v" ', 'key="(.*?)"');
+select match(materialize('a key="v" '), 'key="(.*?)"');
+
+select match('\0 key="v" ', 'key="(.*?)"');
+select match(materialize('\0 key="v" '), 'key="(.*?)"');
+
+select multiMatchAny('\0 key="v" ', ['key="(.*?)"']);
+select multiMatchAny(materialize('\0 key="v" '), ['key="(.*?)"']);
+
+select unhex('34') || ' key="v" ' as haystack, length(haystack), extract( haystack, 'key="(.*?)"') as needle;
+-- works, result = v
+
+select unhex('00') || ' key="v" ' as haystack, length(haystack), extract( haystack, 'key="(.*?)"') as needle;
+-- before fix: returns nothing (zero-byte in the begining of haystack)
+
+select number as char_code,  extract( char(char_code) || ' key="v" ' as haystack, 'key="(.*?)"') as needle from numbers(256);
+-- every other chars codes (except of zero byte) works ok