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support SHOW CHANGED SETTINGS query and add test cases, also do code changes to compile SHOW SETTINGS PROFILES.

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This commit is contained in:
jianmei zhang 2020-12-15 14:44:39 +08:00
parent f829fbb928
commit 508b50d121
6 changed files with 35 additions and 4 deletions
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5
src/Interpreters/InterpreterShowTablesQuery.cpp
View File

@ -85,10 +85,13 @@ String InterpreterShowTablesQuery::getRewrittenQuery()
WriteBufferFromOwnString rewritten_query;
rewritten_query << "SELECT name, type, value FROM system.settings";
if (query.changed)
rewritten_query << " WHERE changed = 1";
if (!query.like.empty())
{
rewritten_query
<< " WHERE name "
<< (query.changed ? " AND name " : " WHERE name ")
<< (query.case_insensitive_like ? "ILIKE " : "LIKE ")
<< DB::quote << query.like;
}

3
src/Parsers/ASTShowTablesQuery.cpp
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@ -57,7 +57,8 @@ void ASTShowTablesQuery::formatQueryImpl(const FormatSettings & settings, Format
}
else if (m_settings)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << "SHOW SETTINGS" << (settings.hilite ? hilite_none : "");
settings.ostr << (settings.hilite ? hilite_keyword : "") << "SHOW " << (changed ? "CHANGED " : "") << "SETTINGS" <<
(settings.hilite ? hilite_none : "");
formatLike(settings);
}
else

1
src/Parsers/ASTShowTablesQuery.h
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@ -19,6 +19,7 @@ public:
bool cluster{false};
bool dictionaries{false};
bool m_settings{false};
bool changed{false};
bool temporary{false};
String cluster_str;

15
src/Parsers/ParserShowTablesQuery.cpp
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@ -25,6 +25,7 @@ bool ParserShowTablesQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expec
ParserKeyword s_cluster("CLUSTER");
ParserKeyword s_dictionaries("DICTIONARIES");
ParserKeyword s_settings("SETTINGS");
ParserKeyword s_changed("CHANGED");
ParserKeyword s_from("FROM");
ParserKeyword s_in("IN");
ParserKeyword s_not("NOT");
@ -100,11 +101,19 @@ bool ParserShowTablesQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expec
query->cluster_str = std::move(cluster_str);
}
else if (s_settings.ignore(pos))
else if (bool changed = s_changed.ignore(pos); changed || s_settings.ignore(pos))
{
query->m_settings = true;
if (bool insensitive = s_ilike.ignore(pos, expected); insensitive || s_like.ignore(pos, expected))
if (changed)
{
query->changed = true;
if (!s_settings.ignore(pos, expected))
return false;
}
/// Not expected due to "SHOW SETTINGS PROFILES"
if (bool insensitive = s_ilike.ignore(pos); insensitive || s_like.ignore(pos))
{
if (insensitive)
query->case_insensitive_like = true;
@ -112,6 +121,8 @@ bool ParserShowTablesQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expec
if (!like_p.parse(pos, like, expected))
return false;
}
else
return false;
}
else
{

11
tests/queries/0_stateless/01293_show_settings.reference
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@ -1 +1,12 @@
send_timeout Seconds 300
insert_in_memory_parts_timeout Milliseconds 600000
distributed_aggregation_memory_efficient Bool 0
aggregation_memory_efficient_merge_threads UInt64 0
memory_tracker_fault_probability Float 0
max_memory_usage UInt64 10000000000
max_memory_usage_for_user UInt64 0
max_untracked_memory UInt64 4194304
memory_profiler_step UInt64 0
memory_profiler_sample_probability Float 0
max_memory_usage_for_all_queries UInt64 0
max_memory_usage UInt64 10000000000

4
tests/queries/0_stateless/01293_show_settings.sql
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@ -1 +1,5 @@
show settings like 'send_timeout';
SHOW SETTINGS ILIKE '%MEMORY%';
SHOW CHANGED SETTINGS ILIKE '%MEMORY%';