feat: Allow getting the EXPLAIN plan of a request

test/io/configs/expected/aliases.config

@@ -3,6 +3,7 @@ db-channel = "pgrst"
 db-channel-enabled = true
 db-extra-search-path = "public"
 db-max-rows = 1000
+db-plan-enabled = false
 db-pool = 10
 db-pool-timeout = 3600
 db-pre-request = "check_alias"

test/io/configs/expected/boolean-numeric.config

@@ -3,6 +3,7 @@ db-channel = "pgrst"
 db-channel-enabled = true
 db-extra-search-path = "public"
 db-max-rows = ""
+db-plan-enabled = false
 db-pool = 10
 db-pool-timeout = 3600
 db-pre-request = ""

test/io/configs/expected/boolean-string.config

@@ -3,6 +3,7 @@ db-channel = "pgrst"
 db-channel-enabled = true
 db-extra-search-path = "public"
 db-max-rows = ""
+db-plan-enabled = false
 db-pool = 10
 db-pool-timeout = 3600
 db-pre-request = ""

test/io/configs/expected/defaults.config

@@ -3,6 +3,7 @@ db-channel = "pgrst"
 db-channel-enabled = true
 db-extra-search-path = "public"
 db-max-rows = ""
+db-plan-enabled = false
 db-pool = 10
 db-pool-timeout = 3600
 db-pre-request = ""

test/io/configs/expected/no-defaults-with-db-other-authenticator.config

@@ -3,6 +3,7 @@ db-channel = "postgrest"
 db-channel-enabled = false
 db-extra-search-path = "public,extensions,other"
 db-max-rows = 100
+db-plan-enabled = true
 db-pool = 1
 db-pool-timeout = 100
 db-pre-request = "test.other_custom_headers"

test/io/configs/expected/no-defaults-with-db.config

@@ -3,6 +3,7 @@ db-channel = "postgrest"
 db-channel-enabled = false
 db-extra-search-path = "public,extensions,private"
 db-max-rows = 1000
+db-plan-enabled = true
 db-pool = 1
 db-pool-timeout = 100
 db-pre-request = "test.custom_headers"

test/io/configs/expected/no-defaults.config

@@ -3,6 +3,7 @@ db-channel = "postgrest"
 db-channel-enabled = false
 db-extra-search-path = "public,test"
 db-max-rows = 1000
+db-plan-enabled = true
 db-pool = 1
 db-pool-timeout = 100
 db-pre-request = "please_run_fast"

test/io/configs/expected/types.config

@@ -3,6 +3,7 @@ db-channel = "pgrst"
 db-channel-enabled = true
 db-extra-search-path = "public"
 db-max-rows = ""
+db-plan-enabled = false
 db-pool = 10
 db-pool-timeout = 3600
 db-pre-request = ""