seo-kw opened a new issue #75:
URL: https://github.com/apache/incubator-age/issues/75
Well, It's a kind of silly thing. And not a bug in AGE. But who is a
newcomer, like me, maybe helpful information.
Maybe we'll test some queries in the official pdf guide through opened
browser, but some troubles in a specific browser which is firefox.
If you just copy & paste below query throughout browser, like this query,
maybe you've got some error like this
Query : SELECT *FROM cypher('graph_name', $$CREATE (n), (m)$$) as (v
agtype);
1. ERROR: syntax error at or near "SELECT"
2. ERROR: cache lookup failed for type 0 at character 28
I got some errors like these. I found nothing helpful and why these errors
i've gotten.
The reason was that you copy query, just got extended-ASCII code together.
firefox copy-paste
1. query: SELECT * FROM cypher('a', $$ CREATE (n), (m) $$ ) as (v
agtype);
2. hex : 53 45 4c 45 43 54 **e2 80 8b** 20 2a 20 46 52 4f 4d **e2 80 8b** 20
63 79 70 68 65 72 28 **e2 80 8b** 27 61 27 **e2 80 8b** 2c 20 24 24 **e2 80
8b** 20 43 52 45 41 54 45 **e2 80 8b** 20 28 6e 29 2c 20 28 6d 29 20 24 24 20
29 20 **e2 80 8b** 61 73 **e2 80 8b** 20 28 76 20 61 67 74 79 70 65 29 3b
other browsers copy-paste
1. query: SELECT *
FROM cypher('graph_name', $$
CREATE (n), (m)
$$) as (v agtype);
2. hex : 53 45 4c 45 43 54 20 2a 0d 0a 46 52 4f 4d 20 63 79 70 68 65 72 28
27 67 72 61 70 68 5f 6e 61 6d 65 27 2c 20 24 24 0d 0a 43 52 45 41 54 45 20 28
6e 29 2c 20 28 6d 29 0d 0a 24 24 29 20 61 73 20 28 76 20 61 67 74 79 70 65 29 3b
The error point is "**e2 80 8b**" hex code which means "ZERO WIDTH SPACE".
You can see that at [utf-8
chart](https://www.utf8-chartable.de/unicode-utf8-table.pl?start=8192&number=128)
Oh well, I just too much talk about this.
Maybe adding browser recommendations will avoid what have I done.
I just say, In short, do not copy queries Apache_AGE_Guide.pdf on firefox!
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