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0001 <!DOCTYPE html> 0002 <html><head> 0003 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> 0004 <title>test.sql_postgres</title> 0005 <meta name="generator" content="KF5::SyntaxHighlighting - Definition (SQL (PostgreSQL)) - Theme (Breeze Dark)"/> 0006 </head><body style="background-color:#232629;color:#cfcfc2"><pre> 0007 <span style="color:#7a7c7d">-- PostgreSQL doesn't use # as comment</span> 0008 <span style="font-weight:bold">select</span> jsoncol <span style="color:#3f8058">#></span> <span style="font-weight:bold">array</span>[<span style="color:#da4453">'p1</span><span style="color:#f44f4f">'</span>, <span style="color:#da4453">'p2</span><span style="color:#f44f4f">'</span>] 0009 <span style="font-weight:bold">from</span> some_table 0010 <span style="font-weight:bold">where</span> col<span style="color:#3f8058">#-</span><span style="color:#da4453">'{1, a}</span><span style="color:#f44f4f">'</span> <span style="color:#3f8058">@</span>? <span style="color:#da4453">'$.b ? (@ > 0)</span><span style="color:#f44f4f">'</span>; 0011 0012 <span style="font-weight:bold">SELECT</span> 0013 0014 <span style="color:#da4453">'Single quoted string</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test01, 0015 <span style="color:#da4453">'Backslashes in single-quoted strings are interpreted literally and get no highlighting: \ </span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test02, 0016 <span style="color:#da4453">'The single-quote character can be escaped by using two of them: </span><span style="color:#3daee9">''</span><span style="color:#da4453"> This is highlighted.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test03, 0017 <span style="color:#da4453">'Line breaks</span> 0018 <span style="color:#da4453">are allowed</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test04, 0019 0020 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">Escape strings are introduced with an uppercase E…</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test11, 0021 <span style="color:#f44f4f">e'</span><span style="color:#f44f4f">or a lowercase e.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test12, 0022 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">Line breaks</span> 0023 <span style="color:#f44f4f">are allowed</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test13, 0024 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">The single-quote character can be escaped by using two of them: </span><span style="color:#3daee9">''</span><span style="color:#f44f4f"> This is highlighted.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test14, 0025 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">They can have escapes like </span><span style="color:#3daee9">\t</span><span style="color:#f44f4f"> or three-digit octal </span><span style="color:#3daee9">\011</span><span style="color:#f44f4f"> or two-digit hexadecimal </span><span style="color:#3daee9">\x09</span><span style="color:#f44f4f">.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test15, 0026 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">Also the escape character itself and the single-quote can be escaped: </span><span style="color:#3daee9">\\</span><span style="color:#f44f4f"> and </span><span style="color:#3daee9">\'</span><span style="color:#f44f4f"> are highlighted.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test16, 0027 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">Non-defined combinations: Example: </span><span style="color:#3daee9">\y</span><span style="color:#f44f4f"> is highlighted because it’s treated as escaped characters and substituted by “y”. Even before a line break</span><span style="color:#3daee9">\</span> 0028 <span style="color:#f44f4f">this is possible.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test17, 0029 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">Higher Unicode code points: Hex: Four-digit </span><span style="color:#3daee9">\u1234</span><span style="color:#f44f4f"> and eight-digit </span><span style="color:#3daee9">\U00001234</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test18, 0030 <span style="color:#f44f4f">E'</span><span style="color:#f44f4f">These escapes with “u” and “U” are the only one that are not error tolerant: </span><span style="color:#da4453;text-decoration:underline">\u</span><span style="color:#f44f4f">123 and </span><span style="color:#da4453;text-decoration:underline">\u</span><span style="color:#f44f4f">123 are highlighted as errors.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test19, 0031 0032 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">Unicode escape strings are introduced with an uppercase U…</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test21, 0033 <span style="color:#f44f4f">u&'</span><span style="color:#f44f4f">or a lowercase u.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test22, 0034 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">The single-quote character can be escaped by using two of them: </span><span style="color:#3daee9">''</span><span style="color:#f44f4f"> This is highlighted.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test23, 0035 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">Types of escape: </span><span style="color:#3daee9">\0061</span><span style="color:#f44f4f"> and </span><span style="color:#3daee9">\+000061</span><span style="color:#f44f4f"> and </span><span style="color:#3daee9">\\</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test24, 0036 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">All other usages of </span><span style="color:#da4453;text-decoration:underline">\</span><span style="color:#f44f4f"> are errors, including </span><span style="color:#da4453;text-decoration:underline">\</span><span style="color:#f44f4f">'</span> test25, 0037 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">Line breaks</span> 0038 <span style="color:#f44f4f">are allowed</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test26, 0039 0040 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">User-defined escape characters can be used instead of \ by specifying</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">UESCAPE</span> <span style="color:#da4453">'w</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test31, 0041 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">Here, \ behaves as normal character. Escape sequences: </span><span style="color:#3daee9">w0061</span><span style="color:#f44f4f"> and </span><span style="color:#3daee9">w+000061</span><span style="color:#f44f4f"> and </span><span style="color:#3daee9">ww</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">UESCAPE</span> <span style="color:#da4453">'w</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test32, 0042 <span style="color:#f44f4f">U&'</span><span style="color:#f44f4f">Also work correctly for escape characters that have a special meaning in Regular Expressions: </span><span style="color:#3daee9">.0061</span><span style="color:#f44f4f"> </span><span style="color:#3daee9">.+000061</span><span style="color:#f44f4f"> and </span><span style="color:#3daee9">..</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">UESCAPE</span> <span style="color:#da4453">'.</span><span style="color:#f44f4f">'</span> <span style="font-weight:bold">AS</span> test33, 0043 0044 <span style="color:#f67400">0</span> <span style="font-weight:bold">AS</span> <span style="color:#27ae60">U&"Unicode escape identifiers are introduces with an uppercase U…"</span>, 0045 <span style="color:#f67400">0</span> <span style="font-weight:bold">AS</span> <span style="color:#27ae60">u&"or a lowercase u."</span>, 0046 <span style="color:#f67400">0</span> <span style="font-weight:bold">AS</span> <span style="color:#27ae60">U&"The double-quote character can be escaped by using two of them: </span><span style="color:#3daee9">""</span><span style="color:#27ae60"> This is highlighted."</span>, 0047 <span style="color:#f67400">0</span> <span style="font-weight:bold">AS</span> <span style="color:#27ae60">U&"Types of escape: </span><span style="color:#3daee9">\0061</span><span style="color:#27ae60"> and </span><span style="color:#3daee9">\+000061</span><span style="color:#27ae60"> and </span><span style="color:#3daee9">\\</span><span style="color:#27ae60">"</span>, 0048 <span style="color:#f67400">0</span> <span style="font-weight:bold">AS</span> <span style="color:#27ae60">U&"All other usages of </span><span style="color:#da4453;text-decoration:underline">\</span><span style="color:#27ae60"> are errors, including </span><span style="color:#da4453;text-decoration:underline">\</span><span style="color:#27ae60">"</span>, 0049 <span style="color:#f67400">0</span> <span style="font-weight:bold">AS</span> <span style="color:#27ae60">U&"Line breaks</span> 0050 <span style="color:#27ae60">are allowed"</span> 0051 0052 <span style="color:#8e44ad">power</span>(<span style="color:#f67400">2</span>, <span style="color:#f67400">3</span>) <span style="font-weight:bold">AS</span> test31, <span style="color:#7a7c7d">-- PostgreSQL Build-in functions (like “power”) are highlighted when followed by an opening parenthesis…</span> 0053 power <span style="font-weight:bold">AS</span> test32, <span style="color:#f67400">0</span> <span style="font-weight:bold">AS</span> power, <span style="color:#7a7c7d">-- …but not highlighted if used as identifier.</span> 0054 <span style="color:#0099ff;font-weight:bold">ST_PointOnSurface</span>(way) <span style="font-weight:bold">AS</span> test33, <span style="color:#7a7c7d">-- PostGIS functions are highlighted as extensions.</span> 0055 0056 <span style="color:#7a7c7d">-- User-defined functions get no special highlighting:</span> 0057 testpower(<span style="color:#f67400">2</span>, <span style="color:#f67400">3</span>) <span style="font-weight:bold">AS</span> test34, 0058 0059 foo <span style="font-weight:bold">AS</span> bar 0060 0061 <span style="font-weight:bold">FROM</span> mytable; 0062 </pre></body></html>