Fix typos in comments.

Backpatch to all supported versions, where applicable, to make backpatching
of future fixes go more smoothly.

Josh Soref

Discussion: https://www.postgresql.org/message-id/CACZqfqCf+5qRztLPgmmosr-B0Ye4srWzzw_mo4c_8_B_mtjmJQ@mail.gmail.com

src/interfaces/ecpg/ecpglib/execute.c

@@ -2,7 +2,7 @@
 
 /*
  * The aim is to get a simpler interface to the database routines.
- * All the tidieous messing around with tuples is supposed to be hidden
+ * All the tedious messing around with tuples is supposed to be hidden
  * by this function.
  */
 /* Author: Linus Tolke

src/interfaces/ecpg/pgtypeslib/datetime.c

@@ -324,7 +324,7 @@ PGTYPESdate_fmt_asc(date dDate, const char *fmtstring, char *outbuf)
  *
  * function works as follows:
  *	 - first we analyze the parameters
- *	 - if this is a special case with no delimiters, add delimters
+ *	 - if this is a special case with no delimiters, add delimiters
  *	 - find the tokens. First we look for numerical values. If we have found
  *	   less than 3 tokens, we check for the months' names and thereafter for
  *	   the abbreviations of the months' names.

src/interfaces/ecpg/pgtypeslib/numeric.c

@@ -1368,11 +1368,11 @@ PGTYPESnumeric_cmp(numeric *var1, numeric *var2)
 {
 	/* use cmp_abs function to calculate the result */
 
-	/* both are positive: normal comparation with cmp_abs */
+	/* both are positive: normal comparison with cmp_abs */
 	if (var1->sign == NUMERIC_POS && var2->sign == NUMERIC_POS)
 		return cmp_abs(var1, var2);
 
-	/* both are negative: return the inverse of the normal comparation */
+	/* both are negative: return the inverse of the normal comparison */
 	if (var1->sign == NUMERIC_NEG && var2->sign == NUMERIC_NEG)
 	{
 		/*

src/interfaces/ecpg/preproc/ecpg.header

@@ -207,7 +207,7 @@ create_questionmarks(char *name, bool array)
 
 	/* In case we have a struct, we have to print as many "?" as there are attributes in the struct
 	 * An array is only allowed together with an element argument
-	 * This is essantially only used for inserts, but using a struct as input parameter is an error anywhere else
+	 * This is essentially only used for inserts, but using a struct as input parameter is an error anywhere else
 	 * so we don't have to worry here. */
 
 	if (p->type->type == ECPGt_struct || (array && p->type->type == ECPGt_array && p->type->u.element->type == ECPGt_struct))

src/interfaces/ecpg/preproc/ecpg.trailer

@@ -355,7 +355,7 @@ ECPGExecuteImmediateStmt: EXECUTE IMMEDIATE execstring
 			  $$ = $3;
 			};
 /*
- * variable decalartion outside exec sql declare block
+ * variable declaration outside exec sql declare block
  */
 ECPGVarDeclaration: single_vt_declaration;
 
@@ -707,7 +707,7 @@ struct_union_type_with_symbol: s_struct_union_symbol
 			free(forward_name);
 			forward_name = NULL;
 
-			/* This is essantially a typedef but needs the keyword struct/union as well.
+			/* This is essentially a typedef but needs the keyword struct/union as well.
 			 * So we create the typedef for each struct definition with symbol */
 			for (ptr = types; ptr != NULL; ptr = ptr->next)
 			{
@@ -1275,7 +1275,7 @@ descriptor_item:	SQL_CARDINALITY			{ $$ = ECPGd_cardinality; }
 		;
 
 /*
- * set/reset the automatic transaction mode, this needs a differnet handling
+ * set/reset the automatic transaction mode, this needs a different handling
  * as the other set commands
  */
 ECPGSetAutocommit:	SET SQL_AUTOCOMMIT '=' on_off	{ $$ = $4; }
@@ -1287,7 +1287,7 @@ on_off: ON				{ $$ = mm_strdup("on"); }
 		;
 
 /*
- * set the actual connection, this needs a differnet handling as the other
+ * set the actual connection, this needs a different handling as the other
  * set commands
  */
 ECPGSetConnection:	SET CONNECTION TO connection_object { $$ = $4; }

src/interfaces/ecpg/preproc/parse.pl

@@ -550,7 +550,7 @@ sub dump_fields
 			if ($len == 1)
 			{
 
-				# Straight assignement
+				# Straight assignment
 				$str = ' $$ = ' . $flds_new[0] . ';';
 				add_to_buffer('rules', $str);
 			}

src/interfaces/libpq/fe-auth.c

@@ -803,7 +803,7 @@ pg_fe_getauthname(PQExpBuffer errorMessage)
  * be sent in cleartext if it is encrypted on the client side.  This is
  * good because it ensures the cleartext password won't end up in logs,
  * pg_stat displays, etc.  We export the function so that clients won't
- * be dependent on low-level details like whether the enceyption is MD5
+ * be dependent on low-level details like whether the encryption is MD5
  * or something else.
  *
  * Arguments are the cleartext password, and the SQL name of the user it

src/interfaces/libpq/libpq-int.h

@@ -309,7 +309,7 @@ typedef struct pg_conn_host
 	char	   *host;			/* host name or address, or socket path */
 	pg_conn_host_type type;		/* type of host */
 	char	   *port;			/* port number for this host; if not NULL,
-								 * overrrides the PGConn's pgport */
+								 * overrides the PGConn's pgport */
 	char	   *password;		/* password for this host, read from the
 								 * password file.  only set if the PGconn's
 								 * pgpass field is NULL. */
@@ -666,7 +666,7 @@ extern void pq_reset_sigpipe(sigset_t *osigset, bool sigpipe_pending,
 #endif
 
 /*
- * The SSL implementatation provides these functions (fe-secure-openssl.c)
+ * The SSL implementation provides these functions (fe-secure-openssl.c)
  */
 extern void pgtls_init_library(bool do_ssl, int do_crypto);
 extern int	pgtls_init(PGconn *conn);

src/interfaces/libpq/win32.c

@@ -32,7 +32,7 @@
 
 #include "win32.h"
 
-/* Declared here to avoid pulling in all includes, which causes name collissions */
+/* Declared here to avoid pulling in all includes, which causes name collisions */
 #ifdef ENABLE_NLS
 extern char *libpq_gettext(const char *msgid) pg_attribute_format_arg(1);
 #else