Remove the use-most-recent-schema flag

This has long been the default in every env.

Author: bkirwi

misc/python/materialize/mzcompose/__init__.py

@@ -504,7 +504,6 @@ def get_default_system_parameters(
     "persist_rollup_fallback_threshold_ms",
     "persist_gc_fallback_threshold_ms",
     "persist_compaction_minimum_timeout",
-    "persist_compaction_use_most_recent_schema",
     "persist_compaction_check_process_flag",
     "balancerd_sigterm_connection_wait",
     "balancerd_sigterm_listen_wait",

misc/python/materialize/parallel_workload/action.py

@@ -1426,7 +1426,6 @@ def __init__(
             "persist_gc_min_versions",
             "persist_gc_max_versions",
             "persist_compaction_minimum_timeout",
-            "persist_compaction_use_most_recent_schema",
             "persist_compaction_check_process_flag",
             "balancerd_sigterm_connection_wait",
             "balancerd_sigterm_listen_wait",

src/persist-client/src/cfg.rs

@@ -322,7 +322,6 @@ pub fn all_dyncfgs(configs: ConfigSet) -> ConfigSet {
         .add(&crate::internal::cache::BLOB_CACHE_SCALE_WITH_THREADS)
         .add(&crate::internal::cache::BLOB_CACHE_SCALE_FACTOR_BYTES)
         .add(&crate::internal::compact::COMPACTION_MINIMUM_TIMEOUT)
-        .add(&crate::internal::compact::COMPACTION_USE_MOST_RECENT_SCHEMA)
         .add(&crate::internal::compact::COMPACTION_CHECK_PROCESS_FLAG)
         .add(&crate::internal::machine::CLAIM_UNCLAIMED_COMPACTIONS)
         .add(&crate::internal::machine::CLAIM_COMPACTION_PERCENT)

src/persist-client/src/internal/compact.rs

@@ -147,15 +147,6 @@ pub(crate) const COMPACTION_MINIMUM_TIMEOUT: Config<Duration> = Config::new(
     before timing it out (Materialize).",
 );
 
-pub(crate) const COMPACTION_USE_MOST_RECENT_SCHEMA: Config<bool> = Config::new(
-    "persist_compaction_use_most_recent_schema",
-    true,
-    "\
-    Use the most recent schema from all the Runs that are currently being \
-    compacted, instead of the schema on the current write handle (Materialize).
-    ",
-);
-
 pub(crate) const COMPACTION_CHECK_PROCESS_FLAG: Config<bool> = Config::new(
     "persist_compaction_check_process_flag",
     true,