<1: created view> a CREATE MATERIALIZED VIEW default.a\nREFRESH EVERY 2 SECOND\n(\n `x` UInt64\n)\nENGINE = Memory\nAS SELECT number AS x\nFROM numbers(2)\nUNION ALL\nSELECT rand64() AS x <2: refreshed> 3 1 1 <3: time difference at least> 1000 <4.1: fake clock> Scheduled 2050-01-01 00:00:01 2050-01-01 00:00:02 1 3 3 3 0 <4.5: altered> Scheduled 2050-01-01 00:00:01 2052-01-01 00:00:00 CREATE MATERIALIZED VIEW default.a\nREFRESH EVERY 2 YEAR\n(\n `x` UInt64\n)\nENGINE = Memory\nAS SELECT x * 2 AS x\nFROM default.src <5: no refresh> 3 <6: refreshed> 2 <7: refreshed> Scheduled 2052-02-03 04:05:06 2054-01-01 00:00:00 CREATE MATERIALIZED VIEW default.b\nREFRESH EVERY 2 YEAR DEPENDS ON default.a\n(\n `y` Int32\n)\nENGINE = MergeTree\nORDER BY y\nSETTINGS index_granularity = 8192\nAS SELECT x * 10 AS y\nFROM default.a <7.5: created dependent> 2052-11-11 11:11:11 <8: refreshed> 20 <9: refreshed> a Scheduled 2054-01-01 00:00:00 <9: refreshed> b Scheduled 2054-01-01 00:00:00 <9.2: dropping> 0 2 <9.4: dropped> 0 2 <10: creating> a Scheduled 2054-01-01 00:00:00 <10: creating> b WaitingForDependencies 2054-01-01 00:00:00 <11: chain-refreshed a> 4 <12: chain-refreshed b> 40 <13: chain-refreshed> a Scheduled 2054-01-01 00:00:01 2054-01-01 00:00:01 2056-01-01 00:00:00 1 <13: chain-refreshed> b Scheduled 2054-01-24 23:22:21 2054-01-24 23:22:21 2056-01-01 00:00:00 1 <15: chain-refreshed a> 6 <16: chain-refreshed b> 60 <17: chain-refreshed> a Scheduled 2062-01-01 00:00:00 <17: chain-refreshed> b Scheduled 2062-01-01 00:00:00 <18: removed dependency> b Scheduled 2062-03-03 03:03:03 2062-03-03 03:03:03 2064-01-01 00:00:00 CREATE MATERIALIZED VIEW default.b\nREFRESH EVERY 2 YEAR\n(\n `y` Int32\n)\nENGINE = MergeTree\nORDER BY y\nSETTINGS index_granularity = 8192\nAS SELECT x * 10 AS y\nFROM default.a