Merging upstream version 1:10.11.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 14 insertions, 2 deletions

diff --git a/include/mysql/plugin.h b/include/mysql/plugin.h
index 14c75251..a5763a02 100644
--- a/include/mysql/plugin.h
+++ b/include/mysql/plugin.h
@@ -531,7 +531,13 @@ struct st_mysql_plugin
   const char *author;   /* plugin author (for I_S.PLUGINS)              */
   const char *descr;    /* general descriptive text (for I_S.PLUGINS)   */
   int license;          /* the plugin license (PLUGIN_LICENSE_XXX)      */
-  int (*init)(void *);  /* the function to invoke when plugin is loaded */
+  /*
+    The function to invoke when plugin is loaded. Plugin
+    initialisation done here should defer any ALTER TABLE queries to
+    after the ddl recovery is done, in the signal_ddl_recovery_done()
+    callback called by ha_signal_ddl_recovery_done().
+  */
+  int (*init)(void *);
   int (*deinit)(void *);/* the function to invoke when plugin is unloaded */
   unsigned int version; /* plugin version (for I_S.PLUGINS)             */
   struct st_mysql_show_var *status_vars;
@@ -555,7 +561,13 @@ struct st_maria_plugin
   const char *author;   /* plugin author (for SHOW PLUGINS)             */
   const char *descr;    /* general descriptive text (for SHOW PLUGINS ) */
   int license;          /* the plugin license (PLUGIN_LICENSE_XXX)      */
-  int (*init)(void *);  /* the function to invoke when plugin is loaded */
+  /*
+    The function to invoke when plugin is loaded. Plugin
+    initialisation done here should defer any ALTER TABLE queries to
+    after the ddl recovery is done, in the signal_ddl_recovery_done()
+    callback called by ha_signal_ddl_recovery_done().
+  */
+  int (*init)(void *);
   int (*deinit)(void *);/* the function to invoke when plugin is unloaded */
   unsigned int version; /* plugin version (for SHOW PLUGINS)            */
   struct st_mysql_show_var *status_vars;